hydraulic cylinder pins and bushings
hydraulic cylinder pins and bushings
Discover our plain bearings: Flange bearings, sleeve bushings, and thrust washers. Customizable bushing materials available. Our products are wear-resistant, maintenance-free, and designed to withstand dirt, dust, and corrosion.
Hydraulic Cylinder Pins And Bushings: Material And Tolerance Data
Hydraulic Cylinder Pins and Self-Lubricating Metal Polymer Bushings: A Perfect Match for Enhanced Performance, Boost Uptime & Cut Costs: Why Self-Lubricating Bushings are Essential for Heavy-Duty Hydraulic Cylinders.
Looking for hydraulic cylinder bushings? Check out our range of PTFE hydraulic cylinder pins and bushings, including cylindrical bush, collar bush, and thrust washer options, all at unbeatable prices.
Hydraulic cylinders are vital in industries like construction, manufacturing, and agriculture, converting fluid power into linear motion to lift heavy loads, operate machinery, and automate processes. Central to their function are pins and bushings, which ensure smooth, controlled movement by connecting the cylinder to the machine. This article highlights the importance of hydraulic cylinder pins and self-lubricating metal polymer bushings in optimizing hydraulic system performance.
**Hydraulic Cylinder Pins: The Key Connection**
Hydraulic cylinder pins link the piston rod to the load or machinery. Made from high-strength steel, these pins endure significant stress and must be durable and wear-resistant. Properly designed and maintained pins are essential for efficient and reliable hydraulic systems.
**Self-Lubricating Metal Polymer Bushings: A High-Performance Upgrade**
Bushings act as wear-resistant liners, reducing friction and wear between pins and connecting components. Traditional bushings require regular lubrication, which can be costly, time-consuming, and environmentally harmful. Self-lubricating metal polymer bushings solve these issues with a steel base and a polymer coating infused with solid lubricants like PTFE or graphite, enabling continuous lubrication without additional grease.
**Benefits of Self-Lubricating Metal Polymer Bushings**
– **Reduced Friction and Wear:** The polymer coating minimizes friction, extending the lifespan of both pins and bushings, reducing downtime and maintenance costs.
– **Environmentally Friendly:** No external lubrication reduces contamination and pollution risks.
– **Wide Temperature Range:** These bushings perform reliably in extreme conditions.
– **Corrosion Resistance:** The polymer coating protects against corrosion, further extending service life.
– **Versatility:** Customizable for various applications, they suit a wide range of industries.
**Conclusion**
Hydraulic cylinder pins and self-lubricating metal polymer bushings are essential for improving hydraulic system performance and efficiency. These bushings reduce friction, wear, and maintenance costs while offering corrosion resistance, environmental benefits, and reliable performance across temperature extremes. By incorporating self-lubricating bushings into hydraulic designs, manufacturers can enhance equipment reliability, longevity, and productivity.
Hydraulic Cylinder Composite Metal Polymer Bushing Material
As a leading provider of hydraulic cylinder solutions, we understand the importance of quality materials for reliable and durable operation. One key component that we focus on is the bushing material used in our hydraulic cylinders. In this article, we will discuss the benefits of using composite metal polymer bushing material for hydraulic cylinders and how it can help improve performance and reduce maintenance costs.
What are composite metal polymer bushings?
Composite metal polymer bushings, also known as bearing bushings or sleeve bearings, are a type of self-lubricating bearing made from a combination of metal and polymer materials. The metal provides strength and support, while the polymer provides low friction and self-lubrication. This unique combination of materials allows for high load capacity, low friction, and long wear life, making them an ideal choice for hydraulic cylinder bushings.
Benefits of composite metal polymer bushings for hydraulic cylinders
- Low friction and self-lubrication
One of the main advantages of composite metal polymer bushings is their low coefficient of friction and self-lubricating properties. This means that they can operate without additional lubrication, reducing maintenance costs and increasing reliability. Additionally, the low friction properties of the bushing material reduce wear on the cylinder shaft, leading to longer component life.
- High load capacity
Composite metal polymer bushings are designed to handle high loads, making them ideal for use in hydraulic cylinders. The metal provides the necessary strength and support to handle heavy loads, while the polymer provides a low friction surface for smooth operation. This combination of materials allows for reliable operation even under heavy loads.
- Corrosion and wear resistance
Composite metal polymer bushings are highly resistant to corrosion and wear, which is particularly important for hydraulic cylinders used in harsh environments. The metal component of the bushing provides resistance to corrosion and wear, while the polymer component provides a low friction surface that is resistant to wear. This combination of properties makes composite metal polymer bushings an excellent choice for hydraulic cylinders used in corrosive or abrasive environments.
- Noise reduction
Composite metal-polymer bushings can help reduce noise levels in hydraulic cylinders by providing a smooth and quiet operation. The low friction properties of the bushing material reduce the amount of noise generated by the cylinder, resulting in a quieter and more efficient operation.
Conclusion
Composite metal-polymer bushings offer many advantages for hydraulic cylinder applications, including low friction, self-lubrication, high load capacity, corrosion and wear resistance, and noise reduction. These properties make them an excellent choice for use in hydraulic cylinders, helping to improve performance and reduce maintenance costs. At our company, we use only the highest quality composite metal polymer bushings in our hydraulic cylinder solutions, ensuring reliable and durable operation for our customers.
Hydraulic Cylinder Bushing Replacement – Self-Lubricating Plain Bearing
Maintaining the functionality of hydraulic cylinders is essential, and bushings play a critical role in this. These components reduce friction, absorb shock, and minimize vibrations within the system. Over time, bushings wear out and need replacement. This guide explains the benefits of self-lubricating plain bearings for hydraulic cylinder bushing replacement and provides a step-by-step process for the task.
**The Benefits of Self-Lubricating Plain Bearings**
Self-lubricating plain bearings, also known as sleeve or journal bearings, reduce friction through a built-in lubricating layer, eliminating the need for additional lubrication. They are an ideal choice for hydraulic cylinder bushings due to several advantages:
– **Longer Lifespan:** These bearings last longer than traditional options, reducing the frequency of replacements and repairs.
– **Lower Maintenance Costs:** Their low-maintenance design minimizes downtime and associated expenses.
– **Enhanced Performance:** They ensure smoother, more consistent operation, improving overall system efficiency.
– **Environmental Benefits:** By eliminating the need for external lubricants, they reduce environmental impact.
**How to Replace Hydraulic Cylinder Bushings**
Replacing bushings requires basic tools and mechanical skills. Follow these steps:
1. **Identify the Worn Bushing:** Inspect the hydraulic cylinder for signs of wear, such as cracks or dents, to determine which bushing needs replacement.
2. **Remove the Old Bushing:** Disassemble the hydraulic cylinder as per the manufacturer’s instructions. Use a bushing puller or hydraulic press to remove the worn bushing.
3. **Install the New Bushing:** Clean the cylinder thoroughly, apply a thin layer of grease to the new bushing, and use a bushing driver or press to install it securely.
4. **Reassemble the Cylinder:** Reassemble the cylinder, ensuring all parts are properly installed and fasteners tightened to the correct torque.
5. **Test the Cylinder:** After reassembly, test for proper functionality by checking for leaks, unusual noises, or other issues. If problems persist, inspect the bushing again.
Replacing hydraulic cylinder bushings is vital for maintaining system performance. Self-lubricating plain bearings provide significant advantages, including durability, cost efficiency, improved operation, and environmental friendliness. With the right tools and skills, the replacement process is straightforward.
Hydraulic Cylinder Bushings & Self-Lubricating Bearings Manufacturing
Get quality hydraulic cylinder pins, bushings, and plain shaft bearings at unbeatable prices. Explore specialized PTFE materials and trusted suppliers for hydraulic cylinder components. 
Fluid power, a cornerstone of the economy, powers numerous industries and applications. Backed by years of expertise and a skilled support team, we drive innovation in product development and introduce new technologies to the market.
- Hydraulic Cylinders Busing
- Valves Bushing
- Centrifugal Pumps Bushing
- Piston Pumps Bushing
- Displacement Pumps Bearing Sleeve
All cylinder bronze sleeve bushings are designed for easy replacement, with a quote provided to the customer beforehand.
At viiplus.com, we specialize in hydraulic cylinder bushings, leveraging extensive experience with the critical materials used in hydraulic pumps, motors, and systems.
Whether you supply a drawing or a sample, we can produce custom hydraulic cylinder and brass bushings to meet your specifications. With a wide range of materials and sizes available, we offer fast manufacturing services and extensive self-lubricating bearing testing. Request a quote today.
Friction Plain Bushings and Bearings for Hydraulic Cylinders: Includes Bushings, Thrust Washers, and Pump Bearings.
- Friction plain bushings for bearings reduce shaft costs by eliminating the need for hardening and grease machining, suitable for pneumatic and hydraulic cylinders, pumps, motors, and railroads. Bearings can be purchased under the Hydraulics section or requested online.
Bushing design: Rod guidance for pneumatic and hydraulic cylinders with maintenance-free, metric-sized steel-bronze/PTFE sliding bushings.
Hydraulic Cylinder Bushings – Quick Replacement
- Self-lubricating Bearings for Control ArmsMaintenance-free sliding bushings for pneumatic and hydraulic cylindersMetric sizes, customizable, and free samples available
Hydraulic Cylinder Bearings and Bushings -Hydraulic Parts Catalog
Hydraulic Bushings & Cylinder Bearings Supplier
Sliding Bearings reduce friction and endure stress between moving parts, with bushings ensuring smooth motion. Common components include hydraulic cylinder sliding bearings and sleeve bushings.
Metal-polymer self-lubricating bearings are widely utilized in automotive and industrial sectors, including applications in hydraulic cylinders, agriculture, construction, food and beverage, marine, material handling, office and packaging equipment, railroad and tramways, textile machinery, and valves.
Material and bushing type selection is guided by application needs. Hydraulic cylinder bearing materials typically consist of a PTFE layer supported by steel, stainless steel, or bronze-backed bushings. Special options, such as red-colored PTFE, include a sintered copper powder sliding layer, with lubricant-filled sliding layer pores for enhanced performance. 
| OPERATING PERFORMANCE | |
| Dry | Very Good |
| Oil-lubricated bushing | Good |
| Grease lubricated | Fair |
| Water lubricated | Fair |
| Process fluid lubricated | Fair |
Hydraulic cylinder pins and bushings, Hydraulic Cylinder Bushes
A wear-resistant material made of modified polytetrafluoroethylene (PTFE) and lead (Pb) (0.01–0.03mm) forms a protective transfer film on the grinding shaft during operation.
A 0.2–0.3mm copper powder layer enhances the bonding strength of PTFE/Pb with the steel plate, providing excellent load-bearing capacity and wear resistance. Copper’s high thermal conductivity efficiently dissipates heat generated during bearing operation.
Low carbon steel (0.7–2.3mm) further improves load-bearing capacity and heat transfer.
Copper/tin electroplating (0.008mm copper, 0.005mm tin) adds corrosion resistance to the bearing.
Application: Suitable for room temperature, low-speed, medium-load environments, it replaces traditional copper sleeves, reducing costs and extending service life. In special cases, it reduces refueling frequency and simplifies replacement in rolling mills. Widely used in automobile chassis, forging machines, mining equipment, construction machinery, hydropower, and steel rolling industries.
| BEARING PROPERTIES | |||
| GENERAL | Unit | Value | |
| Maximum load, p | Static | N/mm2 | 250 |
| Dynamic | N/mm2 | 140 | |
| Operating temperature | Min | °C | -200 |
| Max | °C | 280 | |
| Coefficient of linear thermal expansion | Parallel to the surface | 10-6/K | 11 |
| Normal to the surface | |||
| 10-6/K | 30 |
| DRY Maximum sliding speed, U m/s |
| 2.5 |
| Maximum pU factor N/mm2 x m/s1.8Coefficient of friction |
| 0.02 – 0.25 * |
Maintenance-free Characteristics
- Low friction coefficient
- Multiple areas of use
- Long lifetime
Type of applications
- Self-lubricating bearings for inlet valves of hydro-turbines
- Self-lubricating bearings for lifts
- Self-lubricating bearings for Packaging machines
- Pneumatic cylinders
- Self-lubricating bearings Pumps
Hydraulic Cylinder Bearings Design
- Cylindrical bearings
- Flanged bearings
- Thrust washers
- Slide plates
- Drawing details
Perfect Sizing: Guide to Selecting the Right Hydraulic Cylinder Pin and Bushing Dimensions
Properly sizing hydraulic cylinder pins and bushings is critical for performance, reduced wear, and extended lifespan. This guide outlines key considerations when selecting dimensions for these components.
**Pin Dimensions**
– **Diameter**: Choose a diameter based on load and application type. It should minimize stress and deformation without adding unnecessary friction or weight.
– **Length**: Ensure the pin’s length accommodates the width of attachment points, bushings, and additional components (e.g., spacers, washers). Avoid excessive overhang to prevent bending and instability.
**Bushing Dimensions**
– **Inner Diameter (ID)**: The ID should be slightly larger than the pin diameter for smooth rotation and minimal friction. Proper clearance enhances lubrication, reduces wear, and extends service life.
– **Outer Diameter (OD)**: Match the OD to the bore size of its mounting component (e.g., clevis, rod eye). A snug fit is necessary for support and load distribution.
– **Length**: The bushing length should match the attachment point width and the pin’s length, ensuring full support without overextending, which could cause binding or misalignment.
**Load and Application Factors**
– **Load Capacity**: Base dimensions on maximum operational load, considering weight, force, and pressure to ensure sufficient strength and durability.
– **Environment**: Corrosive settings may require larger clearances to handle corrosion, while high temperatures might need larger components to accommodate for thermal expansion.
– **Lubrication**: Proper lubrication reduces wear and extends lifespan. Ensure dimensions allow for sufficient lubrication channels and clearance to sustain a lubricant film between the pin and bushing.
Selecting the right hydraulic pin and bushing dimensions is essential for system performance and longevity. By addressing load, environment, and lubrication needs, you can optimize dimensions for your specific application. When in doubt, consult experienced engineers or manufacturers for guidance.
(metric: mm)
Boost Uptime & Cut Costs: Why Self-Lubricating Bushings are Essential for Heavy-Duty Hydraulic Cylinders
Hydraulic cylinders are the unsung workhorses across demanding industries like waste management, forestry, transportation, agriculture, material handling, and construction. They provide the immense force needed to lift, push, pull, and move heavy loads. But within these powerful components lies a critical element often overlooked until it fails: the sleeve bushing. Traditionally, these bushings require constant greasing, a task that becomes a significant pain point in the harsh environments these industries operate in.
Enter the self-lubricating sleeve bushing – a game-changing innovation offering a smarter, more reliable, and cost-effective solution for hydraulic cylinder pivot points (like rod ends and cylinder bases).
But what exactly makes them superior, especially in these tough applications? Let’s dive deep.
The Grimy Reality: Challenges with Traditional Greased Bushings in Heavy Industries
Before appreciating the benefits of self-lubricating technology, we need to understand the inherent problems with conventional grease-dependent bushings in demanding settings:
-
Constant Maintenance: Regular greasing intervals are mandatory. Skipping this leads to premature wear, friction buildup, and eventual seizure.
-
Difficult Access: Hydraulic cylinder pivot points are often located in hard-to-reach areas, making lubrication time-consuming, awkward, and sometimes dangerous.
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Contamination Magnet: Grease attracts dirt, dust, debris, wood chips, and moisture – abundant in construction sites, forests, farms, and waste facilities. This abrasive mixture accelerates wear significantly.
-
Environmental Concerns: Grease can leak or be washed out, contaminating soil and water. Increasingly strict environmental regulations make this a serious compliance issue.
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Inconsistent Lubrication: Manual greasing can be inconsistent. Too little grease starves the joint; too much can blow out seals or simply be wasteful.
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Temperature Sensitivity: Grease viscosity changes with temperature. It can become too thick in the cold (causing high startup friction) or too thin in the heat (losing its lubricating film).
-
Downtime Costs: Every minute spent on maintenance or replacing failed bushings due to lubrication issues translates to lost productivity and revenue.
The Solution: Understanding Self-Lubricating Sleeve Bushings
Self-lubricating bushings, often made from engineered polymers, composites, or metal matrices (like bronze) embedded with solid lubricants (like PTFE, graphite, MoS2), eliminate the need for external grease.
How they work:
-
Embedded Lubricant: The lubricating agents are integrated within the bushing material itself.
-
Transfer Film: During initial movement, a microscopic layer of solid lubricant transfers from the bushing to the mating pin surface.
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Low-Friction Interface: This transfer film creates an extremely low-friction, durable interface that sustains lubrication throughout the bushing’s life.
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Sealed System (Effectively): Since no external grease is needed, the system is inherently cleaner and less susceptible to attracting abrasive contaminants.
Head-to-Head: Traditional Greased vs. Self-Lubricating Bushings
Let’s contrast the two approaches directly to highlight the advantages:
| Feature | Traditional Greased Steel/Bronze Bushings | Self-Lubricating Sleeve Bushings (Polymer/Composite/Impregnated Metal) | Advantage of Self-Lubricating |
| Lubrication | Requires regular external greasing | Lubricant embedded within the material; no external grease needed | Eliminates Maintenance |
| Maintenance Needs | High (Scheduled greasing intervals) | Virtually Zero (Install and forget) | Reduces Labor & Downtime |
| Contamination | Grease attracts dirt & debris | Does not attract contaminants; often sealed against ingress | Increases Lifespan |
| Environmental | Potential grease leakage/contamination | No grease leakage; environmentally friendly | Improves Compliance |
| Downtime Risk | Higher (Failure if grease schedule missed) | Lower (Consistent performance) | Boosts Uptime |
| Installation Cost | Generally Lower Initial Part Cost | Often Higher Initial Part Cost | – |
| Total Cost of Ownership (TCO) | Higher (Labor, grease, downtime, replacement) | Lower (Reduced maintenance, longer life, less downtime) | Significant Cost Savings |
| Performance Consistency | Variable (Depends on grease quality/quantity/temp) | Consistent low friction across operating range | Reliable Operation |
| Weight | Heavier (Typically metal) | Lighter (Especially polymer/composite types) | Potential Weight Savings |
Key Takeaway: While the initial purchase price of a self-lubricating bushing might be higher, the Total Cost of Ownership (TCO) is significantly lower due to the elimination of maintenance, reduced downtime, and extended service life.
Why Self-Lubricating Bushings Excel in Specific Industries:
The theoretical benefits translate into tangible advantages in real-world applications:
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Waste Management: Equipment (bin lifters, compactors) operates in highly corrosive and debris-filled environments. Self-lubricating bushings resist contamination and chemical attack far better than grease-attracting metal bushings. Benefit: Reduced seizure, longer cylinder life.
-
Forestry: Harvesters, forwarders, and processors face extreme loads, shocks, vibrations, and constant exposure to wood chips, dirt, and moisture, often in remote locations. Maintenance-free operation is invaluable. Benefit: Increased operational hours, reliability in remote areas.
-
Transportation: Hydraulic systems on dump trucks, lift gates, and trailers endure constant cycling, vibration, and road grime. Self-lubricating bushings provide consistent performance without the hassle of regular greasing under the vehicle. Benefit: Reduced roadside maintenance, enhanced reliability.
-
Agriculture: Tractors, loaders, balers, and implements operate in dusty, dirty, and often wet conditions, with seasonal usage patterns. Self-lubricating bushings won’t dry out or seize during off-seasons and resist abrasive dust ingress. Benefit: Reliable startup after storage, less field maintenance.
-
Material Handling: Forklifts, cranes, aerial work platforms, and conveyor systems require precise and reliable hydraulic function, often involving high cycle rates. Consistent, low-friction movement from self-lubricating bushings improves control and reduces wear. Benefit: Smoother operation, predictable lifespan.
-
Construction: Excavators, loaders, dozers, and backhoes experience severe shock loads, heavy contamination (dirt, sand, cement dust), and wide temperature swings. Robust self-lubricating bushings handle these conditions without lubrication washout or attracting damaging grit. Benefit: Superior durability, less downtime on critical jobsites.
Choosing the Right Self-Lubricating Bushing
Not all self-lubricating bushings are created equal. Selection depends on:
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Load Capacity (PV Rating): Pressure (P) x Velocity (V) – ensures the bushing can handle the operational forces and speeds.
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Operating Temperature: Different materials have different temperature limits.
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Chemical Environment: Resistance to hydraulic fluids, cleaning agents, or environmental contaminants.
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Mating Surface: Hardness and finish of the pin are crucial for optimal performance and life.
-
Misalignment Tolerance: Some designs accommodate shaft misalignment better than others.
Consulting with a knowledgeable supplier is crucial to select the optimal material and design for your specific hydraulic cylinder application.
The Bottom Line: A Strategic Upgrade, Not Just a Component
Switching to self-lubricating sleeve bushings in your hydraulic cylinders is more than just swapping parts; it’s a strategic decision to:
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Dramatically Reduce Maintenance Costs: Eliminate labor and grease expenses.
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Significantly Increase Equipment Uptime: Less downtime for lubrication or failure repair.
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Extend Component Service Life: Better wear resistance in harsh conditions.
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Improve Operational Reliability: Consistent performance regardless of maintenance schedules.
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Enhance Environmental Compliance: No risk of grease contamination.
For businesses operating in waste, forestry, transportation, agriculture, material handling, or construction, the demanding nature of the work requires robust and reliable equipment. Investing in self-lubricating bushing technology for hydraulic cylinders is a proven way to achieve greater efficiency, reduce long-term costs, and gain a competitive edge.
Ready to ditch the grease gun and boost your hydraulic cylinder performance? Explore the benefits of self-lubricating bushings for your specific application today.
| shaft | sleeve | ID | OD | BUSHING THICKNESS | L T（-0.3～0） | |||||||||
| Size | h7 | Size | H7 | φd | φD | T | T | T | 4 | 5 | 6 | 7 | 8 | 10 |
| 5 | 0 -0.012 |
7 | 0.015 0 |
5 | 7 | 0.055 0.025 |
1 | -0.03 -0.075 |
504 | 505 | 506 | – | 508 | – |
| 6 | 0 -0.012 |
8 | 0.015 0 |
6 | 8 | 0.055 0.025 |
1 | -0.03 -0.075 |
– | 605 | 606 | 607 | 608 | 610 |
| 7 | 0 -0.015 |
9 | 0.015 0 |
7 | 9 | 0.055 0.025 |
1 | -0.03 -0.075 |
– | 705 | – | 707 | – | 710 |
| 8 | 0 -0.015 |
10 | 0.015 0 |
8 | 10 | 0.055 0.025 |
1 | -0.03 -0.075 |
– | – | 806 | – | 808 | 810 |
| 9 | 0 -0.015 |
11 | 0.018 0 |
9 | 11 | 0.06 0.03 |
1 | -0.03 -0.075 |
– | – | – | – | – | 910 |
| 10 | 0 -0.015 |
12 | 0.018 0 |
10 | 12 | 0.06 0.03 |
1 | -0.03 -0.075 |
– | – | 1006 | 1007 | 1008 | 1010 |
| 12 | 0 -0.018 |
14 | 0.018 0 |
12 | 14 | 0.06 0.03 |
1 | -0.03 -0.075 |
– | – | 1206 | – | 1208 | 1210 |
| 13 | 0 -0.018 |
15 | 0.018 0 |
13 | 15 | 0.06 0.03 |
1 | -0.03 -0.075 |
– | – | – | – | – | – |
| 14 | 0 -0.018 |
16 | 0.018 0 |
14 | 16 | 0.065 0.035 |
1 | -0.03 -0.075 |
– | – | – | – | – | 1410 |
| 15 | 0 -0.018 |
17 | 0.018 0 |
15 | 17 | 0.065 0.035 |
1 | -0.035 -0.085 |
– | – | – | – | – | 1510 |
| 16 | 0 -0.018 |
18 | 0.018 0 |
16 | 18 | 0.07 0.035 |
1 | -0.035 -0.085 |
– | – | – | – | – | 1610 |
| 17 | 0 -0.018 |
19 | 0.021 0 |
17 | 19 | 0.07 0.035 |
1 | -0.035 -0.085 |
– | – | – | – | – | – |
| 18 | 0 -0.018 |
20 | 0.021 0 |
18 | 20 | 0.075 0.04 |
1 | -0.035 -0.085 |
– | – | – | – | – | 1810 |
| 19 | 0 -0.021 |
22 | 0.021 0 |
19 | 22 | 0.075 0.04 |
1.5 | -0.035 -0.085 |
– | – | – | – | – | – |
| 20 | 0 -0.021 |
23 | 0.021 0 |
20 | 23 | 0.08 0.045 |
1.5 | -0.035 -0.085 |
– | – | – | – | – | 2010 |
| 22 | 0 -0.021 |
25 | 0.021 0 |
22 | 25 | 0.08 0.045 |
1.5 | -0.035 -0.085 |
– | – | – | – | – | 2210 |
| 24 | 0 -0.021 |
27 | 0.021 0 |
24 | 27 | 0.08 0.045 |
1.5 | -0.035 -0.085 |
– | – | – | – | – | – |
| 25 | 0 -0.021 |
28 | 0.021 0 |
25 | 28 | 0.085 0.05 |
1.5 | -0.035 -0.085 |
– | – | – | – | – | 2510 |
| 26 | 0 -0.021 |
30 | 0.021 0 |
26 | 30 | 0.085 0.05 |
2 | -0.035 -0.09 |
– | – | – | – | – | – |
| 28 | 0 -0.021 |
32 | 0.025 0 |
28 | 32 | 0.09 0.05 |
2 | -0.035 -0.09 |
– | – | – | – | – | – |
| 30 | 0 -0.021 |
34 | 0.025 0 |
30 | 34 | 0.09 0.05 |
2 | -0.035 -0.09 |
– | – | – | – | – | – |
| SHAFT | SLEEVE | L T（-0.3～0） | Tolerance of inner diameter after pressing (Reference and valuation) |
||||||||
| SIZE | h7 | SIZE | H7 | 12 | 15 | 20 | 25 | 30 | 35 | 40 | |
| 5 | 0 -0.012 |
7 | 0.015 0 |
– | – | – | – | – | – | – | 0.165 0.06 |
| 6 | 0 -0.012 |
8 | 0.015 0 |
– | – | – | – | – | – | – | 0.165 0.06 |
| 7 | 0 -0.015 |
9 | 0.015 0 |
712 | – | – | – | – | – | – | 0.165 0.06 |
| 8 | 0 -0.015 |
10 | 0.015 0 |
812 | – | – | – | – | – | – | 0.165 0.06 |
| 9 | 0 -0.015 |
11 | 0.018 0 |
– | – | – | – | – | – | – | 0.168 0.06 |
| 10 | 0 -0.015 |
12 | 0.018 0 |
1012 | 1015 | 1020 | – | – | – | – | 0.168 0.06 |
| 12 | 0 -0.018 |
14 | 0.018 0 |
1212 | 1215 | 1220 | – | – | – | – | 0.168 0.06 |
| 13 | 0 -0.018 |
15 | 0.018 0 |
– | 1315 | – | – | – | – | – | 0.168 0.06 |
| 14 | 0 -0.018 |
16 | 0.018 0 |
1412 | 1415 | 1420 | – | – | – | – | 0.168 0.06 |
| 15 | 0 -0.018 |
17 | 0.018 0 |
1512 | 1515 | 1520 | 1525 | – | – | – | 0.188 0.07 |
| 16 | 0 -0.018 |
18 | 0.018 0 |
1612 | 1615 | 1620 | 1625 | – | – | – | 0.188 0.07 |
| 17 | 0 -0.018 |
19 | 0.021 0 |
– | 1715 | 1720 | – | – | – | – | 0.191 0.07 |
| 18 | 0 -0.018 |
20 | 0.021 0 |
1812 | 1815 | 1820 | 1825 | – | – | – | 0.191 0.07 |
| 19 | 0 -0.021 |
22 | 0.021 0 |
– | 1915 | – | – | – | – | – | 0.191 0.07 |
| 20 | 0 -0.021 |
23 | 0.021 0 |
2012 | 2015 | 2020 | 2025 | 2030 | – | – | 0.191 0.07 |
| 22 | 0 -0.021 |
25 | 0.021 0 |
2212 | 2215 | 2220 | 2225 | 2230 | – | – | 0.191 0.07 |
| 24 | 0 -0.021 |
27 | 0.021 0 |
– | 2415 | 2420 | 2425 | 2430 | – | – | 0.191 0.07 |
| 25 | 0 -0.021 |
28 | 0.021 0 |
2512 | 2515 | 2520 | 2525 | 2530 | 2535 | – | 0.191 0.07 |
| 26 | 0 -0.021 |
30 | 0.021 0 |
– | 2615 | 2620 | – | 2630 | – | – | 0.201 0.07 |
| 28 | 0 -0.021 |
32 | 0.025 0 |
2812 | 2815 | 2820 | 2825 | 2830 | – | 2840 | 0.205 0.07 |
| 30 | 0 -0.021 |
34 | 0.025 0 |
3012 | 3015 | 3020 | 3025 | 3030 | – | 3040 | 0.205 0.07 |
| SHAFT | SLEEVE | ID | OD | SLEEVE BUSHING | L T（-0.3～0） | ||||||||||
| SIZE | h7 | SIZE | H7 | φd | φD | T | T | T | 12 | 15 | 20 | 25 | 30 | 40 | 50 |
| 31 | 0 -0.025 |
35 | 0.025 0 |
31 | 35 | 0.09 0.05 |
2 | -0.035 -0.09 |
– | – | – | 3125 | – | 3140 | – |
| 32 | 0 -0.025 |
36 | 0.025 0 |
32 | 36 | 0.09 0.05 |
2 | -0.035 -0.09 |
– | – | 3220 | 3225 | 3230 | 3240 | – |
| 35 | 0 -0.025 |
39 | 0.025 0 |
35 | 39 | 0.095 0.055 |
2 | -0.035 -0.09 |
3512 | 3515 | 3520 | 3525 | 3530 | 3540 | 3550 |
| 38 | 0 -0.025 |
42 | 0.025 0 |
38 | 42 | 0.095 0.055 |
2 | -0.035 -0.09 |
– | – | 3820 | – | 3830 | 3840 | 3850 |
| 40 | 0 -0.025 |
44 | 0.025 0 |
40 | 44 | 0.095 0.055 |
2 | -0.035 -0.09 |
4012 | – | 4020 | 4025 | 4030 | 4040 | 4050 |
| 42 | 0 -0.025 |
47 | 0.025 0 |
42 | 47 | 0.095 0.055 |
2.5 | -0.04 -0.105 |
– | – | – | – | – | 4240 | 4250 |
| 45 | 0 -0.025 |
50 | 0.025 0 |
45 | 50 | 0.1 0.06 |
2.5 | -0.04 -0.105 |
– | – | 4520 | 4525 | 4530 | 4540 | 4550 |
| 50 | 0 -0.025 |
55 | 0.03 0 |
50 | 55 | 0.105 0.06 |
2.5 | -0.04 -0.105 |
– | – | 5020 | – | 5030 | 5040 | – |
| 55 | 0 -0.03 |
60 | 0.03 0 |
55 | 60 | 0.11 0.065 |
2.5 | -0.04 -0.105 |
– | – | – | – | 5530 | 5540 | – |
| 60 | 0 -0.03 |
65 | 0.03 0 |
60 | 65 | 0.12 0.07 |
2.5 | -0.04 -0.105 |
– | – | – | – | 6030 | 6040 | 6050 |
| 65 | 0 -0.03 |
70 | 0.03 0 |
65 | 70 | 0.125 0.075 |
2.5 | -0.045 -0.095 |
– | – | – | – | 6530 | 6540 | – |
| 70 | 0 -0.03 |
75 | 0.03 0 |
70 | 75 | 0.125 0.075 |
2.5 | -0.045 -0.095 |
– | – | – | – | – | 7040 | – |
| 75 | 0 -0.03 |
80 | 0.03 0 |
75 | 80 | 0.13 0.075 |
2.5 | -0.045 -0.095 |
– | – | – | – | 7530 | 7540 | – |
| 80 | 0 -0.03 |
85 | 0.035 0 |
80 | 85 | 0.13 0.075 |
2.5 | -0.045 -0.095 |
– | – | – | – | – | 8040 | – |
| 85 | 0 -0.035 |
90 | 0.035 0 |
85 | 90 | 0.13 0.075 |
2.5 | -0.045 -0.095 |
– | – | – | – | – | 8540 | – |
| 90 | 0 -0.035 |
95 | 0.035 0 |
90 | 95 | 0.13 0.075 |
2.5 | -0.045 -0.095 |
– | – | – | – | – | 9040 | – |
| 100 | 0 -0.035 |
105 | 0.035 0 |
100 | 105 | 0.14 0.08 |
2.5 | -0.06 -0.11 |
– | – | – | – | – | – | 10050 |
| 110 | 0 -0.035 |
115 | 0.035 0 |
110 | 115 | 0.14 0.08 |
2.5 | -0.06 -0.11 |
– | – | – | – | – | – | 11050 |
| 120 | 0 -0.035 |
125 | 0.04 0 |
120 | 125 | 0.145 0.09 |
2.5 | -0.06 -0.11 |
– | – | – | – | – | – | 12050 |
| 130 | 0 -0.04 |
135 | 0.04 0 |
130 | 135 | 0.145 0.09 |
2.5 | -0.06 -0.11 |
– | – | – | – | – | – | 13050 |
| 140 | 0 -0.04 |
145 | 0.04 0 |
140 | 145 | 0.165 0.1 |
2.5 | -0.06 -0.11 |
– | – | – | – | – | – | 14050 |
| 150 | 0 -0.04 |
155 | 0.04 0 |
150 | 155 | 0.185 0.12 |
2.5 | -0.06 -0.11 |
– | – | – | – | – | – | 15050 |
| 160 | 0 -0.04 |
165 | 0.04 0 |
160 | 165 | 0.185 0.12 |
2.5 | -0.06 -0.11 |
– | – | – | – | – | – | 16050 |
| SHAFT | SLEEVE | L T（-0.3～0） | Tolerance of inner diameter after pressing (Reference and valuation) |
||||||||||
| SIZE | h7 | SIZE | H7 | 55 | 60 | 65 | 70 | 80 | 90 | 95 | 100 | 125 | |
| 31 | 0 -0.025 |
35 | 0.025 0 |
– | – | – | – | – | – | – | – | – | 0.205 0.07 |
| 32 | 0 -0.025 |
36 | 0.025 0 |
– | – | – | – | – | – | – | – | – | 0.205 0.07 |
| 35 | 0 -0.025 |
39 | 0.025 0 |
– | – | – | – | – | – | – | – | – | 0.205 0.07 |
| 38 | 0 -0.025 |
42 | 0.025 0 |
– | – | – | – | – | – | – | – | – | 0.205 0.07 |
| 40 | 0 -0.025 |
44 | 0.025 0 |
– | – | – | – | – | – | – | – | – | 0.205 0.07 |
| 42 | 0 -0.025 |
47 | 0.025 0 |
– | – | – | – | – | – | – | – | – | 0.235 0.08 |
| 45 | 0 -0.025 |
50 | 0.025 0 |
– | 4560 | – | – | – | – | – | – | – | 0.235 0.08 |
| 50 | 0 -0.025 |
55 | 0.03 0 |
5055 | 5060 | 5065 | – | – | – | – | – | – | 0.24 0.08 |
| 55 | 0 -0.03 |
60 | 0.03 0 |
– | 5560 | – | 5570 | – | – | – | – | – | 0.24 0.08 |
| 60 | 0 -0.03 |
65 | 0.03 0 |
– | 6060 | – | – | 6080 | – | – | – | – | 0.24 0.08 |
| 65 | 0 -0.03 |
70 | 0.03 0 |
– | 6560 | – | – | – | – | – | – | – | 0.22 0.09 |
| 70 | 0 -0.03 |
75 | 0.03 0 |
– | 7060 | – | – | 7080 | – | – | – | – | 0.22 0.09 |
| 75 | 0 -0.03 |
80 | 0.03 0 |
– | 7560 | – | – | 7580 | – | – | – | – | 0.22 0.09 |
| 80 | 0 -0.03 |
85 | 0.035 0 |
– | 8060 | – | – | 8080 | – | – | – | – | 0.225 0.09 |
| 85 | 0 -0.035 |
90 | 0.035 0 |
– | 8560 | – | – | 8580 | – | – | – | – | 0.225 0.09 |
| 90 | 0 -0.035 |
95 | 0.035 0 |
– | 9060 | – | – | – | 9090 | – | – | – | 0.225 0.09 |
| 100 | 0 -0.035 |
105 | 0.035 0 |
– | – | – | 10070 | – | – | 10095 | – | – | 0.255 0.12 |
| 110 | 0 -0.035 |
115 | 0.035 0 |
– | – | – | 11070 | – | – | 11095 | – | – | 0.255 0.12 |
| 120 | 0 -0.035 |
125 | 0.04 0 |
– | – | – | 12070 | – | – | 12095 | – | – | 0.26 0.12 |
| 130 | 0 -0.04 |
135 | 0.04 0 |
– | – | – | – | 13080 | – | – | – | 130125 | 0.26 0.12 |
| 140 | 0 -0.04 |
145 | 0.04 0 |
– | – | – | – | 14080 | – | – | 140100 | 140125 | 0.26 0.12 |
| 150 | 0 -0.04 |
155 | 0.04 0 |
– | – | – | – | 15080 | – | – | 150100 | 150125 | 0.26 0.12 |
| 160 | 0 -0.04 |
165 | 0.04 0 |
– | – | – | – | 16080 | – | – | 160100 | 160125 | 0.26 0.12 |
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