SF-1B bronze backed bushing bearing
SF-1B bronze backed bushing bearing
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.
Elevating Performance with SF-1B Bronze Bearings: A Deep Dive into Oil-Free Self-Lubricating Composite Bearings, bronze-backed bushing, SF-1B Bronze Backed Bushing Bearing
Explore the Advantages of Metal-Polymer Bronze Backed Bushings: Experience the Superior Dry Bearing Qualities of PTFE with Our High-Quality Self-Lubricating Bearings!
Bearings are critical components in numerous applications, playing a pivotal role in reducing friction between moving parts. Among the variety of bearings available, the SF-1B bronze bearing, an oil-free self-lubricating composite bearing, offers exceptional performance and convenience, redefining what to expect from bearings.
Understanding SF-1B Bronze Bearings
The SF-1B bronze bearing is a member of the SF-1 series, which are self-lubricating composite bearings. The SF-1B variant incorporates bronze into the construction, bringing together the advantages of bronze and the benefits of self-lubrication.
These bearings consist of several layers. The innermost layer, which comes in contact with the shaft, is made of PTFE (Polytetrafluoroethylene) and lead. This is followed by a layer of porous bronze, which is in turn enveloped by a bronze backing. This multi-layer construction is meticulously designed to ensure optimal performance and durability.
The Power of Oil-Free Self-Lubrication
The standout feature of SF-1B bronze bearings is their self-lubricating ability. The PTFE and lead layer offers low friction, allowing for smooth movement of the shaft without the need for any additional lubrication. This not only saves time and resources but also minimizes the chances of any failures or breakdowns related to lubrication.
Advantages of SF-1B Bronze Bearings
SF-1B bronze bearings bring numerous benefits to the table, making them a preferred choice for a variety of applications. Here are some of the key advantages they offer:
- Self-Lubricating: As mentioned earlier, these bearings require no additional lubrication, reducing maintenance time and costs.
- Durability: The bronze backing ensures high load capacity, while the bronze inner layer enhances wear resistance, ensuring a long lifespan.
- Versatility: SF-1B bronze bearings can be used in a wide range of operating temperatures, from -195°C to 280°C, making them suitable for various environments.
- Environmentally Friendly: With no need for oil or other lubricants, these bearings are environmentally friendly, contributing to sustainable practices.
Applications of SF-1B Bronze Bearings
Thanks to their robust properties and versatile nature, SF-1B bronze bearings find use in a myriad of applications across different industries. These include automotive, construction machinery, agricultural machinery, sports equipment, and more. To sum up, SF-1B bronze bearings offer an exceptional blend of convenience, performance, and durability, proving to be an excellent choice for any application requiring reliable and maintenance-free operation. With their self-lubricating property and robust construction, these bearings are truly a game-changer.
SF-1B Bronze Bushing is based on tin Bronze as the base, the middle sintered Bronze spherical powder, the surface rolling PTEE and high temperature filled material. It has a high safety factor, can not stop working in the continuous repair of high-temperature places and can not be particularly suitable for refueling places.
At present, the product has been widely used in the metallurgical steel industry, continuous casting machine billet raceway, high-temperature furnace furnace equipment, cement grouting pump and screw conveyor. It can be combined in the external steel sleeve, can also be made into flanging, to the end, the hole at the same time the effect of friction. Sliding bearing part of the bridge, is the use of SF-1B wear-resistant layer of thick PTFE products to replace the plate.Up to 130N / mm² load-bearing requirements.
Materials for Sliding Bearings, Metal Slide Bushing Bearing Supplier
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Features
This Bushing is an environmentally friendly “Lead-free bearing.” This compound bearing, a “perfect oilless bearing” that does not require any lubricant at all uses polytetrafluoroethylene (PTFE) resin, has excellent low friction characteristics, and also optimizes metal properties such as strength and dimensional stability.
It is safer in the application, especially suitable for occasions where the machine must work continuously and cannot stop for repair or where the temperature is high and no oil can be refilled. It is widely used in the steel metallurgy industry.
Application
1. Billet raceways of continuous casters
2. High-temperature furnace cast house equipment
3. Cement grouting pumps
4. Screw conveyors
5. Sliding part of the bridge support– SF-1B product with thickened wear-resistant layer replaces the pure PTFE plate, 130N/mm² load capacity can be met.
Forms available
1. Assembly –SF-1B bushing pressed into a steel bushing
2. Flange bushing — simultaneous friction on the flange surface and the inside surface of the bushing.
Characteristics
Suitable for lubricated applications
Suitable for linear, oscillating and rotating movements
Bronze back offers improved corrosion resistance in humid/saline environments
Approved to standard EN 1337-2 for structural bearings for civil engineering
Approved to standard DIN EN 1797 and ISO 21010 (Cryogenic Vessels – Gas/Material Compatibility) for piping, valves, fittings and other components in both gaseous and liquid oxygen for up to maximum temperature of 60°C and oxygen pressure of 25 bars. Contact VIIPLUS for further details
Tested acc. to ASTM E595/ECSS-Q-ST-70-02C – Outgassing properties of materials used in Spacecraft equipment
Technical Parameters
| Data | Code | SF-1B |
| Material | Bronze+Bronze+(PTFE+ Pb+Filler) | |
| Applications | Products used in metallurgical machinery,
continuous casting machinery, cement machinery. |
|
| Max Load Capacity P (Dry Friction) | Static Load N/mm² | 250 |
| Dynamic Load N/mm² | 140 | |
| Oscoillation Load N/mm² | 60 | |
| Max Line Speed V | Dry Friction m/s | 2.5 |
| Oil Lubrication m/s | ＞5 | |
| PV Value Limit | Dry Friction m/s N/mm²·m/s | 1.8 |
| Oil Lubrication m/s N/mm²·m/s | 3.6 | |
| Friction Coefficient u | Dry Friction | 0.08~0.20 |
| Oil Lubrication | 0.02~0.12 | |
| Mating Axis | Hardness HB | ＞220 |
| Roughness Ra | 0.4~1.25 | |
| Working Temperature ℃ | -200~+280 | |
| Thermal Conductivity W/mk | 60 | |
| Coefficient Of Linear Xpansion | 11×10-6/K | |
| Outside Surface Plating | – | |
| In addition to the standard products shown in the catalog,
you can also provide non-standard products or order according to customer requirements. |
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SF-1B bronze bearing size chart
| Part No. | Nominal Diameter | Wall thickness s3 |
Width B |
Shaft-φ Dj [h6, f7, h8] | Housing-φ D[H6, H7] | Bush-φ Dla ass. inH6/H7 housing | Clearance Cd |
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| Di | Do | max. min. |
max. min. |
max. min. |
max. min. |
max. min. |
max. min. |
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| 0203SF-1B bronze bearing | 2 | 3.5 | 0.750 0.730 |
3.25 2.75 |
h6 | 2.000 1.994 |
H6 | 3.508 3.500 |
2.048 2.000 |
0.054 0.000 |
| 0205SF-1B bronze bearing | 5.25 4.75 |
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| 0306SF-1B bronze bearing | 3 | 4.5 | 6.25 5.75 |
3.000 2.994 |
4.508 4.500 |
3.048 3.000 |
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| 0404SF-1B bronze bearing | 4 | 5.5 | 4.25 3.75 |
4.000 3.992 |
5.508 5.500 |
4.048 4.000 |
0.056 0.000 |
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| 0406SF-1B bronze bearing | 6.25 5.75 |
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| 0505SF-1B bronze bearing | 5 | 7 | 1.005 | 5.25 4.75 |
f7 | 4.990 4.978 |
H7 | 7.015 7.000 |
5.055 4.990 |
0.077 0.000 |
| 0510SF-1B bronze bearing | 10.25 9.75 |
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| 0606SF-1B bronze bearing | 6 | 8 | 6.25 5.75 |
5.990 5.978 |
8.015 8.000 |
6.055 5.990 |
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| 0608SF-1B bronze bearing | 8.25 7.75 |
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| 0610SF-1B bronze bearing | 10.25 9.75 |
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| 0808SF-1B bronze bearing | 8 | 10 | 8.25 7.75 |
7.987 7.972 |
10.015 10.000 |
8.055 7.990 |
0.083 0.003 |
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| 0810SF-1B bronze bearing | 10.25 9.75 |
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| 0812SF-1B bronze bearing | 12.25 11.75 |
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| 1010SF-1B bronze bearing | 10 | 12 | 10.25 9.75 |
9.987 9.972 |
12.018 12.000 |
10.058 9.990 |
0.086 0.003 |
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| 1015SF-1B bronze bearing | 15.25 14.75 |
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| 1208SF-1B bronze bearing | 12 | 14 | 8.25 7.75 |
11.984 11.966 |
14.018 14.000 |
12.058 11.990 |
0.092 0.006 |
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| 1210SF-1B bronze bearing | 10.25 9.75 |
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| 1212SF-1B bronze bearing | 12.25 11.75 |
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| 1215SF-1B bronze bearing | 15.25 14.75 |
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| 1410SF-1B bronze bearing | 14 | 16 | 1.005 0.980 |
10.25 9.75 |
f7 | 13.984 13.966 |
H7 | 16.018 16.000 |
14.058 13.990 |
0.092 0.006 |
| 1415SF-1B bronze bearing | 15.25 14.75 |
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| 1420SF-1B bronze bearing | 20.25 19.75 |
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| 1515SF-1B bronze bearing | 15 | 17 | 15.25 14.75 |
14.984 14.966 |
17.018 17.000 |
15.058 14.990 |
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| 1525SF-1B bronze bearing | 25.25 14.75 |
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| 1615SF-1B bronze bearing | 16 | 18 | 15.25 14.75 |
15.984 15.966 |
18.018 18.000 |
16.058 15.990 |
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| 1625SF-1B bronze bearing | 25.25 24.75 |
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| 1820SF-1B bronze bearing | 18 | 20 | 20.25 19.75 |
17.984 17.966 |
20.021 20.000 |
18.061 17.990 |
0.095 0.006 |
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| 1825SF-1B bronze bearing | 25.25 24.75 |
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| 2015SF-1B bronze bearing | 20 | 23 | 1.505 1.475 |
15.15 14.75 |
19.980 19.959 |
23.021 23.000 |
20.071 19.990 |
0.112 0.010 |
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| 2020SF-1B bronze bearing | 20.25 19.75 |
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| 2025SF-1B bronze bearing | 25.25 24.75 |
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| 2030SF-1B bronze bearing | 30.25 29.75 |
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| 2215SF-1B bronze bearing | 22 | 25 | 15.25 14.75 |
21.980 21.959 |
25.021 25.000 |
22.071 21.990 |
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| 2220SF-1B bronze bearing | 20.25 19.75 |
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| 2225SF-1B bronze bearing | 25.25 24.75 |
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| 2515SF-1B bronze bearing | 25 | 28 | 15.25 14.75 |
24.980 24.959 |
28.021 28.000 |
25.071 24.990 |
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| 2525SF-1B bronze bearing | 25.25 24.75 |
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| 2830SF-1B bronze bearing | 28 | 32 | 2.005 1.970 |
30.25 29.75 |
27.980 27.959 |
32.025 32.000 |
28.085 27.990 |
0.126 0.010 |
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| 3020SF-1B bronze bearing | 30 | 34 | 20.25 19.75 |
29.980 29.959 |
34.025 34.000 |
30.085 29.990 |
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| 3030SF-1B bronze bearing | 30.25 29.75 |
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| 3040SF-1B bronze bearing | 40.25 39.75 |
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| 3520SF-1B bronze bearing | 35 | 39 | 20.25 19.75 |
34.975 34.950 |
39.025 39.000 |
35.085 34.990 |
0.135 0.015 |
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| 3530SF-1B bronze bearing | 30.25 29.75 |
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| 4030SF-1B bronze bearing | 40 | 44 | 30.25 29.75 |
39.975 39.950 |
44.025 44.000 |
40.085 39.990 |
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| 4050SF-1B bronze bearing | 50.25 49.75 |
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| 4530SF-1B bronze bearing | 45 | 50 | 2.505 2.460 |
30.25 29.75 |
44.875 44.950 |
50.025 50.000 |
45.105 44.990 |
0.155 0.015 |
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| 4550SF-1B bronze bearing | 50.25 49.75 |
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| 5040SF-1B bronze bearing | 50 | 55 | 40.25 39.75 |
49.975 49.950 |
55.030 55.000 |
50.110 54.990 |
0.160 0.015 |
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| 5060SF-1B bronze bearing | 60.25 59.75 |
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| 5540SF-1B bronze bearing | 55 | 60 | 40.25 39.75 |
54.970 54.940 |
60.030 60.000 |
55.110 54.990 |
0.170 0.020 |
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| 6040SF-1B bronze bearing | 60 | 65 | 40.25 39.75 |
59.970 59.940 |
65.030 65.000 |
60.110 59.990 |
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| 6050SF-1B bronze bearing | 50.25 49.75 |
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| 6060SF-1B bronze bearing | 60.25 59.75 |
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| 6070SF-1B bronze bearing | 70.25 69.75 |
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| 6570SF-1B bronze bearing | 65 | 70 | 70.25 69.75 |
64.970 64.940 |
70.030 70.000 |
65.110 64.990 |
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| 7075SF-1B bronze bearing | 70 | 75 | 2.505 2.460 |
50.25 49.75 |
f7 | 69.970 69.940 |
H7 | 75.030 75.000 |
70.110 69.990 |
0.170 0.020 |
| 7070SF-1B bronze bearing | 70.25 69.75 |
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| 7580SF-1B bronze bearing | 75 | 80 | 80.25 79.75 |
74.970 97.940 |
80.030 80.000 |
75.110 74.990 |
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| 8060SF-1B bronze bearing | 80 | 85 | 2.490 2.440 |
60.50 59.50 |
h8 | 80.000 79.946 |
85.035 85.000 |
80.155 80.020 |
0.201 0.020 |
|
| 80100SF-1B bronze bearing | 100.50 99.50 |
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| 85100SF-1B bronze bearing | 85 | 90 | 100.50 99.50 |
85.000 84.946 |
90.035 90.000 |
85.155 85.020 |
0.209 0.020 |
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| 9060SF-1B bronze bearing | 90 | 95 | 60.50 59.50 |
90.000 89.946 |
95.035 95.000 |
90.155 90.020 |
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| 90100SF-1B bronze bearing | 100.50 99.50 |
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| 95100SF-1B bronze bearing | 95 | 100 | 100.50 99.50 |
95.000 94.946 |
100.035 100.000 |
95.155 95.020 |
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| 10060SF-1B bronze bearing | 100 | 105 | 60.50 59.50 |
100.000 99.946 |
105.035 105.000 |
100.155 100.020 |
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| 100115SF-1B bronze bearing | 115.50 114.50 |
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| 10511SF-1B bronze bearing | 105 | 110 | 115.50 114.51 |
105.000 104.946 |
110.035 110.000 |
105.155 105.020 |
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| 110115SF-1B bronze bearing | 110 | 115 | 115.50 114.52 |
110.00 109.946 |
110.035 110.001 |
115.155 115.020 |
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