self-lubricating bushes composite bearing material developed specifically to operate with marginal lubrication and consists of three bonded layers: a steel backing strip and a sintered porous bronze matrix, impregnated and overlaid with a pigmented acetal copolymer bearing material
CuSn8 Bronze Bushings

CuSn8 Bronze 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.

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Flanged Bronze Bearing made of CuSn8 with Grease Reservoirs Bronze Plain Bearing Wrapped Bronze With Lubrication diamond pattern - low-maintenance
Flanged Bronze Bearing made of CuSn8 with Grease Reservoirs Bronze Plain Bearing Wrapped Bronze With Lubrication diamond pattern - low-maintenance
Straight Bronze Bearing made of CuSn8 with Grease Reservoirs Bronze Plain Bearing Wrapped Bronze With Lubrication diamond pattern - low-maintenance
Straight Bronze Bearing made of CuSn8 with Grease Reservoirs
straight diamond bronze bearing Bronze Bearings of CuSn8 - Lubrication Indents
straight diamond bronze bearing
Bronze Bearing made of CuSn8
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Discover Diamond-Shaped Lubricant Reservoirs and CuSn8 Bronze Bushing Slide Bearings on Our Website.

Wide selection of CuSn8 bronze bushings and flanged bearings from China’s sliding bearings manufacturer. Competitive pricing. Get a quote now!

CuSn8 bronze flanged bushings, crafted from tin bronze material, stand out for their superior mechanical properties, high-temperature stability (up to 400°C), friction reduction, and corrosion resistance across various settings. These bearings are tailored for applications demanding self-lubrication and high performance, making them highly adaptable for use in conditions that involve low-speed, high-load activities, such as oscillatory movements in the construction, mining, agriculture, and automotive sectors.

Manufactured from CuSn8 rolled phosphor bronze alloy, these bearings incorporate specific design elements like lubrication holes or pockets filled with graphite or grease. This ensures consistent lubrication and minimized friction during use. The flanged bushings’ design, featuring lubrication holes, facilitates extended maintenance intervals and enhanced performance, setting them apart from other bronze bearing materials.

CuSn8 bronze bushings, also known as FB090 and FB092, are widely used in industrial applications due to their excellent mechanical and tribological properties.

The term “cusn8” appears to relate to bronze bearings made of CuSn8, a specific type of bronze alloy. Here’s some information about CuSn8 bronze bearings:

  1. CuSn8 Bronze Material: CuSn8 is a bronze alloy primarily composed of copper (Cu) and tin (Sn). It’s known for its excellent wear resistance and corrosion resistance properties, making it a suitable choice for bearing applications.
  2. Grease Reservoirs: Some CuSn8 bronze bearings, like the LD Bronze Bearings, come with grease reservoirs. These reservoirs are designed to hold lubrication, which helps reduce friction and wear in the bearing, prolonging its lifespan.
  3. Lubrication Indents: In addition to grease reservoirs, some CuSn8 bronze bearings, such as the Bronze Bearings, may have lubrication indents to facilitate effective lubrication.
  4. Applications: CuSn8 bronze bearings are commonly used in various industrial applications, including those involving high loads, low speeds, and corrosive environments. They find use in industries like automotive, construction, and manufacturing.

These bearings are valued for their durability and performance in demanding conditions, making them a popular choice in engineering and machinery applications.

CuSn8 bronze is a copper-based alloy containing approximately 91-93% copper, 6-8% tin, and 0.3% phosphorus. The addition of tin and phosphorus provides excellent wear resistance, high strength, and good corrosion resistance. These properties make CuSn8 bronze an ideal material for bushings and bearings used in heavy-duty industrial applications.

FB090 and FB092 are specific types of CuSn8 bronze bushings. FB090 is a cylindrical bushing, while FB092 is a flanged bushing with a built-in flange that provides additional support and stability. These bushings are self-lubricating, which means they don’t require external lubrication and can operate in dry conditions.

The self-lubricating properties of CuSn8 bronze bushings are due to the presence of solid lubricant particles such as graphite and molybdenum disulfide. These particles are embedded in the material and provide a low friction coefficient, reducing wear and extending the life of the bushing.

CuSn8 bronze bushings are commonly used in applications that involve high loads, low speeds, and oscillating or intermittent motion. Some common applications include heavy machinery, agricultural equipment, construction equipment, and automotive applications.

When selecting a CuSn8 bronze bushing, it is important to consider the specific application requirements and the operating conditions. Factors such as load capacity, speed, temperature, and environmental conditions can all affect the performance of the bushing.

In summary, CuSn8 bronze bushings FB090 and FB092 are widely used in heavy-duty industrial applications due to their excellent mechanical and tribological properties. The self-lubricating properties of these bushings make them ideal for dry operating conditions, and their high strength and wear resistance make them suitable for high-load applications.

Bronze Sleeve Copper Bearings – Factory Direct & Fast Shipping
Experienced Manufacturer & Supplier in China. Guaranteed Top Quality & Service. Quality Bronze Sleeve Bearings Supplier & Manufacturer in China, Contact Now! Quality Assurance. Wholesale Price. Advanced Technology.

The CuSn8 Bronze Bushings are rolled from a bronze strip with a high specific density. There are diamond-shaped or round lubricant grooves on the inner surface, incorporated as per the client’s requirements.

Nonferrous Metal Bearings – Tin bronze Bushing, Bushing Finder – viiplus.com bush manufacturing company

Your reliable source for Bronze Bearings CuSn6, CuSn8, CuSn8P. Expert Advice。EFair Prices. Good Service. Providing Good Service

This type of bushings is characterized by high levels of resilience and long service lives. They take the place of the traditional bronze bushings but are more economical and more compact. They are suitable for use in lifting vehicles and construction machinery, cars, tractors, trucks, machine tools, and in the engine construction industry.

Sleeve Bearing Manufacturer, Slide bearings Supplier, Wrapped bronze bearing Wholesale
Self-Lubricating Bronze Wrapped Bearing CuSn8 Bronze Material, Factory Price, Contact Us! View Products. View Wrapped Bronze Bushing Catalog.
Wrapped Bronze Bearings, CuSn8P, Diamond oil pocket

CuSn8P Slide Bearings – Lubricating holes, bronze made of cusn8

bronze wrapped bearing bushes split CuSn8

Bronze Bearings Made Of Cusn8. With Grease Reservoirs

Cylindrical bushes. Bearing forms made to order: cylindrical bushes with non-standard size, flanged bushes, sliding bushes, customized bronze bearing designs.
Self Lubricating Bearing – Learn more – Millions of Worldwide Users
Self Lubricating Bearings – Excel In Hi-Temp Applications
  • Wrapped bearings
  • Metric bushings self-lubricating
  • Bronze bushings metric

Wrapped bronze bearing with lubrication indents ISO 3547 and DIN 1494

wrapped in bronze bearings (CuSn8)
temperature range: -40° up to 150°C
with diamond-shaped lubrication pockets

Wrapped Bronze is made completely of bronze, CuSn8. The bushings are produced from strips that are then wrapped and calibrated. The working surface is machined and provided with diamond-shaped indentations all over its sliding surface. These indentations serve as lubricant reservoirs, where the lubricant is initially filled and progressively released during operation.

bronze bushing Wrapped Bronze Bearings, CuSn8P, Diamond oil pocket

Wrapped Bronze Bearings, CuSn8P, Diamond oil pocket Bronze Bushing

Application recommendations:

  • Shaft tolerance e7 – f8
  • Housing tolerance H7
  • Shaft roughness Ra, µm 0,4 .. 0,8
  • Shaft hardness, HB 150 – 400

Wrapped Bronze bushings offer many features and advantages

• insensitive to dirty environments
• resistant to shock loads and vibrations at slow speeds
• good resistance to corrosive conditions

they are made completely of bronze and particularly suitable for applications that must be re-lubricated due to dirty environments. The sliding surface is provided with lubrication pockets which contribute to the enhanced lubrication performance.VIIPLUS offers a full range of both plain and flanged cylindrical bushings in accordance with ISO 3547 and DIN 1494

Tin Bronze Bushing is suitable for both radial and axial movements.

wrapped bronze Bushings are well suited to machines in dirty environments where shock loads and/or vibrations occur.
Examples of applications are:
• agricultural machinery
• hoisting equipment
• construction machinery
• forest machinery

Characteristics

  • High load capacity
  • Works well even in difficult conditions
  • Good lubrication properties because of lubrication indents
  • Wide range of temperature

Design

  • Cylindrical bearings
  • Flanged bearings
  • Thrust washers
  • Plates
  • Drawing details

Equipment providing our customers with excellent quality

  • Automatic forming machine
  • Automatic chamfering machine
  • Coating thickness gauge
  • 3 points ID testing
  • Metallographic testing
  • Chemical elements testing
  • Hardness Testing

Difference of the material cusn8p and cusn6.5

Property CuSn8P CuSn6.5
Chemical composition Copper (Cu) 91.5-93.5%, Tin (Sn) 6.0-8.0%, Phosphorus (P) 0.03-0.35% Copper (Cu) 91.5-93.5%, Tin (Sn) 5.5-7.0%, no phosphorus
Density 8.9 g/cm3 8.8 g/cm3
Tensile strength 340-490 MPa 310-450 MPa
Yield strength 140-400 MPa 100-400 MPa
Elongation 5-20% 10-25%
Hardness 90-120 HB 75-110 HB
Corrosion resistance Good in most environments Good in most environments
Machinability Good Good
Uses Bearings, bushings, gears, and other high-load applications Similar uses as CuSn8P,

but with a slightly lower load-bearing capacity

CuSn8P and CuSn6.5 are two copper alloys that differ in their chemical composition, which results in differences in their mechanical and physical properties.

CuSn8P contains small amounts of phosphorus, which enhances its strength and wear resistance. It has a higher density, tensile strength, yield strength, and hardness compared to CuSn6.5. CuSn8P is commonly used in high-load applications such as bearings, bushings, gears, and other machine parts.

On the other hand, CuSn6.5 has no phosphorus in its composition, which makes it slightly less strong and harder than CuSn8P. However, it still has good corrosion resistance and machinability. It is often used in similar applications as CuSn8P, but where slightly lower load-bearing capacity is acceptable.

Overall, the choice between CuSn8P and CuSn6.5 depends on the specific requirements of the application and the desired balance of properties.

Technical information and standard dimensions on the datasheet.

Technical Data

Max Load Static load 120N/mm2 Hardness HB110-150
Dynamic 40N/mm2 Elongation 40%
Max. Speed 2m/s Temp. -100℃~＋200℃
Max PV 2.8N/mm2．m/s Friction coefficient 0.08~0.25
Tensile strength 450N/mm2 Thermal conductivity 60W(m．K)-1
Yield point 250N/mm2 Coefficient of thermal expansion 15×10-6/K-1

 

Professional Engineering Selection Guide

Monometallic & Wrapped Bronze Bushing

Series: FB090, FB092, FB09G, FB08G (Metric)

1. Product Family Overview

This portfolio covers four distinct bearing technologies, ranging from high-density bronze monometallic designs to high-strength bimetallic steel-backed bushings. Each series is optimized for specific operating conditions.

 
 
Series Original Type Material Base Lubrication Mechanism Key Engineering Feature
FB090 Standard Bronze CuSn8 (High-density bronze) Rolled diamond/half-ball oil indents High load capacity, excellent wear resistance, long service life
FB092 Punch-hole Bronze CuSn8 (Bronze) Through oil holes (regularly distributed) Maximum static/dynamic load ratings; heavy-duty transport applications
FB09G Solid-lubricant Bronze CuSn8 + Porous sintered bronze Spiral diamond oil pockets + solid lubricants (Pb/MoS₂, ~25% coverage) Low friction, maintenance-free, ideal for oscillating/start-stop motion
FB08G Bimetallic Solid-lubricant Low-carbon steel + sintered bronze overlay Spiral diamond oil pockets + solid lubricants (Pb/MoS₂, ~25% coverage) Highest strength; supports dry or oil-lubricated operation; extreme temperature capability

2. Performance Comparison Matrix (Selection at a Glance)

Choose the series based on your dominant operating parameters.

 
 
Parameter FB090 FB092 FB09G FB08G
Max Static Load 120 N/mm² 250 N/mm² (Highest) 120 N/mm² 70 N/mm² (Dry) / 90 N/mm² (Oil)
Max Dynamic Load 40 N/mm² 140 N/mm² (Highest) 40 N/mm² (Varies by lubrication)
Max Sliding Speed 2.0 m/s 2.5 m/s 2.5 m/s 0.4 m/s (Dry) / 2.0 m/s (Oil)
Max PV Limit 2.8 N/mm²·m/s 2.8 N/mm²·m/s 2.8 N/mm²·m/s 15.0 N/mm²·m/s (Oil) – Highest
Friction Coefficient 0.08 – 0.25 0.05 – 0.25 0.05 – 0.25 < 0.22 (Dry) / < 0.08 (Oil)
Operating Temperature -100°C ~ +200°C -40°C ~ +130°C -100°C ~ +200°C -250°C (Dry) / 200°C (Oil)
Thermal Conductivity 60 W/m·K 4 W/m·K 60 W/m·K 76 W/m·K
Thermal Expansion (α) 15×10⁻⁶/K 11×10⁻⁶/K 15×10⁻⁶/K 22×10⁻⁶/K
Primary Application Hoists, machine tools, construction Elevators, coiling machinery, agriculture Automotive starters, generators, clutches Starters, generators, hoisting, metallurgy

3. Detailed Engineering Specifications per Series

3.1 FB090 – Bronze Self-Lubricating Bearing (Oil Indent Type)

  • Material: CuSn8 (Cu: Balance, Sn: 7.0~9.0%, P: 0.03~0.45%).

  • Mechanical Properties: Tensile Strength ≥ 450 N/mm²; Yield Point ≥ 250 N/mm²; Elongation ≥ 40%.

  • Lubrication: Rolled diamond or half-ball oil indents retain lubricant, providing a continuous oil film.

  • Best for: Medium-load, medium-speed rotating applications where maintenance intervals need to be extended.

3.2 FB092 – Bronze Self-Lubricating Bearing (Through-Hole Type)

  • Material: CuSn8 (same composition as FB090).

  • Lubrication: Regularly distributed through-holes allow pressurized oil supply or grease replenishment.

  • Best for: Heavy-duty industrial machinery with external lubrication systems (e.g., conveyors, mining equipment). Note: Higher load capacity (250 N/mm² static) compensates for the reduced thermal conductivity (4 W/m·K) and limited temperature range (-40~130°C).

3.3 FB09G – Bronze Solid-Lubricant Bearing

  • Material: CuSn8 base with sintered porous bronze layer.

  • Lubrication: Spiral diamond oil pockets are embedded with solid lubricants (lead + molybdenum disulfide). ~25% of the bearing surface is lubricated.

  • Best for: Applications with intermittent motion, high start-stop cycles, or where boundary lubrication conditions prevail (e.g., automotive starters, generators).

3.4 FB08G – Bimetallic Solid-Lubricant Bearing (Steel-Backed)

  • Material: Low-carbon steel backing (for high structural strength) + sintered porous bronze overlay.

  • Lubrication: ~25% surface area covered with solid lubricants (Pb/MoS₂) in spiral pockets.

  • Best for: High-temperature environments (up to 250°C dry), oscillating loads, and applications requiring both dry-running capability and exceptional oil-lubricated PV limits (15 N/mm²·m/s).

4. Dimensional & Fitting Engineering Guide

4.1 Bushing Outer Diameter (OD) Tolerances for Housing Press-Fit

To ensure a secure interference fit, the bushing OD is manufactured to the following “plus” tolerances. This guarantees radial retention when pressed into a standard H7 housing bore.

 
 
Outer Diameter Range (ΦD in mm) OD Tolerance (mm)
ΦD ≤ 10 +0.055 / +0.025
10 < ΦD ≤ 18 +0.065 / +0.030
18 < ΦD ≤ 30 +0.075 / +0.035
30 < ΦD ≤ 50 +0.085 / +0.045
50 < ΦD ≤ 80 +0.100 / +0.055
80 < ΦD ≤ 120 +0.120 / +0.070
120 < ΦD ≤ 180 +0.170 / +0.100
180 < ΦD ≤ 250 +0.210 / +0.130
250 < ΦD ≤ 305 +0.260 / +0.170

Engineering Note: When the bushing is pressed into a Housing H7 (Medium) bore, the interference fit causes the inner diameter (ID) to shrink. After assembly, the final running clearance will correspond to H9 internal accuracy. Ensure your shaft is machined to accommodate this post-press ID.

4.2 Bushing Inner Diameter (ID) Tolerances (Pre-Press)

(Reference for shaft design before considering press-fit reduction)

 
 
Inner Diameter Range (Φd in mm) Wall Thickness / ID Tolerance (mm)
Φd ≤ 10 +0.036 / 0
10 < Φd ≤ 18 +0.043 / 0
18 < Φd ≤ 30 +0.052 / 0
30 < Φd ≤ 50 +0.062 / 0
50 < Φd ≤ 80 +0.074 / 0
80 < Φd ≤ 120 +0.087 / 0
120 < Φd ≤ 180 +0.100 / 0
180 < Φd ≤ 250 +0.115 / 0
250 < Φd ≤ 350 +0.130 / 0

5. Part Numbering & Ordering Code

Understanding the designation system is critical for error-free ordering.

5.1 Standard Cylindrical Bushings (FB090, FB092, FB09G)

Format: [Series] [Bore Size (mm)] [Length (mm)]

  • Example 1: FB090 2525 → FB090 Series, Bore = 25 mm, Length = 25 mm.

  • Example 2: FB092 10080 → FB092 Series, Bore = 100 mm, Length = 80 mm.

  • Example 3: FB09G 3030 → FB09G Series, Bore = 30 mm, Length = 30 mm.

5.2 Flanged Bushing (FB08G)

Format: FBF [Bore Size (mm)] [Length (mm)] (The internal product family is FB08G, ordered via the FBF prefix)

  • Example: FBF 2520 → FB08G Series Flanged Bushing, Bore = 25 mm, Length = 20 mm.

6. Step-by-Step Engineering Selection Workflow

Step 1: Define the Load Profile

  • Heavy static loads (>120 N/mm²) or dynamic impacts? → Select FB092 (250 N/mm² static).

  • High-speed continuous rotation (>2.0 m/s)? → Consider FB092 or FB09G (2.5 m/s), but verify PV limits.

Step 2: Evaluate Lubrication Conditions

  • External oil supply available? → FB092 (through-holes) or FB08G (oil-lubricated, PV up to 15).

  • Maintenance-free / dry-running? → FB09G or FB08G (solid lubricants). Check speed limits (0.4 m/s for dry FB08G).

Step 3: Check Thermal Environment

  • Temperature > 150°C? → FB08G (supports 250°C dry) or FB090/FB09G (supports 200°C).

  • Sub-zero temperatures (< -40°C)? → FB090 or FB09G (down to -100°C). Avoid FB092 below -40°C.

Step 4: Calculate PV Value

  • Use the formula: PV = (Load in N/mm²) × (Speed in m/s).

  • Ensure the calculated value is below the series limit (2.8 for FB090/092/09G; 2.6 dry / 15 oil for FB08G).

Step 5: Finalize Housing & Shaft Fits

  • Machine the housing bore to the standard H7 tolerance.

  • Use the OD tolerance table to confirm interference.

  • After pressing, re-check the final ID (which will tighten to H9 level) and machine the shaft accordingly to ensure proper running clearance.

7. Recommended Applications Matrix

 
 
Industry / Equipment Recommended Series Reason
Hoist & Construction Machinery FB090 High density, oil-impregnated, long life under shock loads.
Elevators & Coiling Machinery FB092 Through-holes allow forced grease re-lubrication; high static load rating.
Automotive Starters & Generators FB09G / FB08G Solid lubricants handle dry start-stop cycles; low friction at startup.
Metallurgical / High-Temp Furnaces FB08G Steel backing withstands high temps (250°C dry) and thermal expansion (22×10⁻⁶/K).
General Machine Tools FB090 Balanced performance, moderate speeds, easy maintenance.

8. Summary of Installation Guidelines

  • Housing Preparation: Bore to H7 tolerance. Deburr edges and clean thoroughly.

  • Pressing: Apply a steady axial force to the bushing flange or press-fit shoulder. Never strike directly.

  • Post-Press Verification: Measure the installed ID to ensure it falls within the H9 tolerance range. If the ID is too tight, lightly hone to the required shaft clearance.

  • Initial Lubrication: For FB090/FB092, apply a thin layer of assembly oil. For FB09G/FB08G, the solid lubricants are active immediately; no break-in lubrication is required, though oil improves performance for FB08G.

This guide is intended for preliminary engineering selection. For specific life-cycle calculations (e.g., L10h bearing life) or extreme condition validations (e.g., vacuum, water submersion), please contact our technical engineering support team with your detailed application parameters.

 
 
 
 
 

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FB090
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FB090
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FB090
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FB090
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11080
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110100

 

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20090
FB090
200110

FB090, FB092 & FB08G Standard Metric Bushing Series – Dimensional Data

Units: Millimeters (mm)

Note: Dimensional data for the FB09G series is not available in the referenced standard and is therefore omitted from this catalog.

General Dimensional Information

Parameter Specification
Unit mm
Length Tolerance L ±0.25 mm
Shaft Tolerance Listed as upper/lower deviation (mm)
Housing Tolerance Listed as upper/lower deviation (mm)
Designation Rule The numeric suffix represents Bore Diameter × Length (e.g., 1010 = Ø10 × 10 mm)
Installation Press-fit into housing bore

FB090 Series

Standard Cylindrical Wrapped Bronze Bushings (OD ≤ Ø75 mm)

Material: CuSn8 phosphor bronze with diamond-shaped oil pockets.

Typical Applications: General machinery, agricultural equipment, lifting devices, machine tools, and industrial transmissions.

Designation OD (ØD) ID (Ød) Shaft Tolerance Housing Tolerance f1 f2 Standard Lengths (mm)
FB090 12 12 10 10 (-0.013/-0.028) 12 (+0.018/0) 0.6 0.3 10, 15, 20
FB090 14 14 12 12 (-0.016/-0.034) 14 (+0.018/0) — — 10, 15, 20
FB090 16 16 14 14 (-0.016/-0.034) 16 (+0.018/0) — — 15, 20
FB090 17 17 15 15 (-0.016/-0.034) 17 (+0.018/0) — — 15, 20, 25
FB090 18 18 16 16 (-0.016/-0.034) 18 (+0.018/0) — — 15, 20, 25
FB090 19 19 17 17 (-0.016/-0.034) 19 (+0.021/0) — — 15, 20, 25
FB090 20 20 18 18 (-0.016/-0.034) 20 (+0.021/0) — — 15, 20, 25
FB090 23 23 20 20 (-0.020/-0.041) 23 (+0.021/0) 0.8 0.4 15, 20, 25, 30
FB090 25 25 22 22 (-0.020/-0.041) 25 (+0.021/0) — — 15, 20, 25, 30
FB090 27 27 24 24 (-0.020/-0.041) 27 (+0.021/0) — — 20, 25, 30
FB090 28 28 25 25 (-0.020/-0.041) 28 (+0.021/0) — — 20, 25, 30
FB090 32 32 28 28 (-0.020/-0.041) 32 (+0.025/0) 1.2 0.6 20, 25, 30
FB090 34 34 30 30 (-0.020/-0.041) 34 (+0.025/0) — — 20, 25, 30, 40
FB090 36 36 32 32 (-0.025/-0.050) 36 (+0.025/0) — — 20, 25, 30, 40
FB090 39 39 35 35 (-0.030/-0.060) 39 (+0.025/0) — — 20, 25, 30, 40
FB090 44 44 40 40 (-0.025/-0.050) 44 (+0.025/0) — — 20, 25, 30, 40
FB090 50 50 45 45 (-0.025/-0.050) 50 (+0.025/0) 1.6 0.8 20, 25, 30, 40
FB090 55 55 50 50 (-0.025/-0.050) 55 (+0.030/0) — — 30, 40, 50
FB090 60 60 55 55 (-0.030/-0.060) 60 (+0.030/0) — — 30, 40, 50
FB090 65 65 60 60 (-0.030/-0.060) 65 (+0.030/0) — — 30, 40, 50
FB090 70 70 65 65 (-0.030/-0.060) 70 (+0.030/0) — — 30, 40, 50
FB090 75 75 70 70 (-0.030/-0.060) 75 (+0.030/0) — — 30, 40, 50

FB092 Series

Heavy-Duty Cylindrical Wrapped Bronze Bushings (OD ≥ Ø80 mm)

Material: CuSn8 bronze with through lubrication holes.

Typical Applications: Elevators, mining equipment, heavy conveyors, steel mills, construction machinery, and large industrial transmissions.

Designation OD (ØD) ID (Ød) Shaft Tolerance Housing Tolerance f1 f2 Standard Lengths (mm)
FB092 80 80 75 75 (-0.030/-0.060) 80 (+0.030/0) 1.6 0.8 40, 50, 60
FB092 85 85 80 80 (-0.030/-0.060) 85 (+0.035/0) — — 40, 50, 60
FB092 90 90 85 85 (-0.036/-0.071) 90 (+0.035/0) — — 40, 50, 60
FB092 95 95 90 90 (-0.036/-0.071) 95 (+0.035/0) — — 50, 60, 80
FB092 100 100 95 95 (-0.036/-0.071) 100 (+0.035/0) — — 50, 60, 80
FB092 105 105 100 100 (-0.036/-0.071) 105 (+0.035/0) — — 50, 60, 80, 100
FB092 110 110 105 105 (-0.036/-0.071) 110 (+0.035/0) — — 50, 60, 80, 100
FB092 115 115 110 110 (-0.036/-0.071) 115 (+0.035/0) — — 50, 60, 80, 100
FB092 120 120 115 115 (-0.036/-0.071) 120 (+0.035/0) — — 50, 60, 80, 100
FB092 125 125 120 120 (-0.036/-0.071) 125 (+0.040/0) — — 60, 80, 100
FB092 130 130 125 125 (-0.043/-0.083) 130 (+0.040/0) — — 60, 80, 100
FB092 135 135 130 130 (-0.043/-0.083) 135 (+0.040/0) — — 60, 80, 100
FB092 140 140 135 135 (-0.043/-0.083) 140 (+0.040/0) — — 60, 80, 100
FB092 145 145 140 140 (-0.043/-0.083) 145 (+0.040/0) — — 60, 80, 100
FB092 150 150 145 145 (-0.043/-0.083) 150 (+0.040/0) — — 60, 80, 100
FB092 160 160 155 155 (-0.043/-0.083) 160 (+0.040/0) — — 80, 100, 120
FB092 170 170 165 165 (-0.043/-0.083) 170 (+0.040/0) — — 80, 100, 120
FB092 180 180 175 175 (-0.043/-0.083) 180 (+0.040/0) — — 80, 100, 120
FB092 190 190 185 185 (-0.050/-0.096) 190 (+0.046/0) — — 80, 100, 120
FB092 200 200 195 195 (-0.050/-0.096) 200 (+0.046/0) — — 80, 100, 120
FB092 210 210 205 205 (-0.050/-0.096) 210 (+0.046/0) — — 80, 100, 120
FB092 220 220 215 215 (-0.050/-0.096) 220 (+0.046/0) — — 80, 100, 120
FB092 230 230 225 225 (-0.050/-0.096) 230 (+0.046/0) — — 80, 100, 120
FB092 240 240 235 235 (-0.050/-0.096) 240 (+0.046/0) — — 80, 100, 120
FB092 250 250 245 245 (-0.050/-0.096) 250 (+0.046/0) — — 80, 100, 120
FB092 265 265 260 260 (-0.056/-0.108) 265 (+0.052/0) — — 80, 100, 120
FB092 285 285 280 280 (-0.056/-0.108) 285 (+0.052/0) — — 80, 100, 120
FB092 305 305 300 300 (-0.056/-0.108) 305 (+0.052/0) — — 80, 100, 120

FB08G Series

Flanged Wrapped Bushing Series

Construction: Steel backing with sintered bronze layer and embedded solid lubricant (Pb/MoS₂).

Typical Applications: Thrust positioning, intermittent motion, high-temperature service, and dry-running equipment.

Designation Shaft Ød Housing ØD Flange ØD₁ Length L f1 f2 Shaft Tolerance Housing Tolerance
FB08G 2520 25 28 35 20 0.8 0.4 25 (-0.020/-0.041) 28 (+0.021/0)
FB08G 2525 25 28 35 25 0.8 0.4 25 (-0.020/-0.041) 28 (+0.021/0)
FB08G 3020 30 34 45 20 1.2 0.6 30 (-0.020/-0.041) 34 (+0.025/0)
FB08G 3025 30 34 45 25 1.2 0.6 30 (-0.020/-0.041) 34 (+0.025/0)
FB08G 3030 30 34 45 30 1.2 0.6 30 (-0.020/-0.041) 34 (+0.025/0)
FB08G 3530 35 39 50 30 — — 35 (-0.025/-0.050) 39 (+0.025/0)
FB08G 3540 35 39 50 40 — — 35 (-0.025/-0.050) 39 (+0.025/0)
FB08G 3550 35 39 50 50 — — 35 (-0.025/-0.050) 39 (+0.025/0)
FB08G 4030 40 44 55 30 — — 40 (-0.025/-0.050) 44 (+0.025/0)
FB08G 4040 40 44 55 40 — — 40 (-0.025/-0.050) 44 (+0.025/0)
FB08G 4050 40 44 55 50 — — 40 (-0.025/-0.050) 44 (+0.025/0)
FB08G 5030 50 55 65 30 1.6 0.8 50 (-0.025/-0.050) 55 (+0.030/0)
FB08G 5040 50 55 65 40 1.6 0.8 50 (-0.025/-0.050) 55 (+0.030/0)
FB08G 5050 50 55 65 50 1.6 0.8 50 (-0.025/-0.050) 55 (+0.030/0)
FB08G 5530 55 60 70 30 — — 55 (-0.030/-0.060) 60 (+0.030/0)
FB08G 5540 55 60 70 40 — — 55 (-0.030/-0.060) 60 (+0.030/0)
FB08G 5550 55 60 70 50 — — 55 (-0.030/-0.060) 60 (+0.030/0)
FB08G 6040 60 65 75 40 — — 60 (-0.030/-0.060) 65 (+0.030/0)
FB08G 6050 60 65 75 50 — — 60 (-0.030/-0.060) 65 (+0.030/0)
FB08G 6060 60 65 75 60 — — 60 (-0.030/-0.060) 65 (+0.030/0)
FB08G 8050 80 85 100 50 — — 80 (-0.030/-0.060) 85 (+0.035/0)
FB08G 8060 80 85 100 60 — — 80 (-0.030/-0.060) 85 (+0.035/0)
FB08G 8080 80 85 100 80 — — 80 (-0.030/-0.060) 85 (+0.035/0)
FB08G 10050 100 105 120 50 — — 100 (-0.036/-0.071) 105 (+0.035/0)
FB08G 10060 100 105 120 60 — — 100 (-0.036/-0.071) 105 (+0.035/0)
FB08G 10080 100 105 120 80 — — 100 (-0.036/-0.071) 105 (+0.035/0)
FB08G 16060 160 165 190 60 — — 160 (-0.043/-0.083) 165 (+0.040/0)
FB08G 16080 160 165 190 80 — — 160 (-0.043/-0.083) 165 (+0.040/0)
FB08G 20060 200 205 235 60 — — 200 (-0.050/-0.096) 205 (+0.046/0)
FB08G 20080 200 205 235 80 — — 200 (-0.050/-0.096) 205 (+0.046/0)

Engineering Installation Notes

Item Recommendation
Outer Diameter (ØD) Press-fit dimension for the housing bore.
Inner Diameter (Ød) Running surface for the mating shaft.
Shaft & Housing Fits Follow the specified tolerances to maintain the designed interference fit after installation.
Chamfers (f1, f2) Assembly lead-ins that reduce installation damage and edge stress concentration. Blank entries indicate that no standard value is specified.
Length Tolerance All standard lengths are manufactured to ±0.25 mm.
Housing Recommendation Standard H7 housing bore.
Running Bore After Press-Fit The installed bore typically contracts to approximately H9 tolerance. Verify the assembled bore before final shaft fitting or precision machining.
Length Selection Select the minimum standard length that satisfies the required load capacity and PV value to improve material utilization and reduce manufacturing cost.

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