SB-T90S | CuSn8 wrapped bronze bearings with SEALs or wiper rings, metric size
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SB-T90S | CuSn8 wrapped bronze bearings with SEALs or wiper rings, metric size
SB-T90S bearings are wrapped from a cold formed homogenous bronze CuSn8 (alternative CuPb10Sn10) with
exceptional material properties. The standard sizes incorporate holes, which are dispersed in a special
way over the whole bearing surface. These holes serve as lubricant reservoirs to rapidly build up a
lubrication film at the start of movement and thereafter reduce the running friction. The material is suitable
for construction and agricultural machinery etc. where high load and slow movement occur.
| Bronze alloy |
Chemical Composition (%) |
Type |
| CuSn8 |
Cu=91.3% Sn=8.5% P=0.2% Pb=0% Zn=0% |
Lead Free |
| CuPb10Sn10 |
Cu=Balance. Sn= 9~11%, Pb=9~11% |
With Lead |
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* Available bronze alloys used in this part:
BS 2874 PB104 / BS EN 12163 CW453K / NFL 14703 / ISO 427 DTD 265A / QQ B 750 D / SAE J 461 CA521 /
ASTM B 139 C52100 / ASTM B 103 C52100 / SAE J463 / DIN 17672 2.1030 / JIS H 3741 / SIS 14 54 31
Features
1. Easy of fitting and lubricate
2. High load capacity
3. Excellent wear resistance with lower friction
4. High level thermal conductivity
5. Minimum overall dimensions
6. Chemical resistance
7. Extended service life and lubrication intervals than normal SB-090 type bearings
8. Free selection of lubricants
9. Collection of dust and rub off particles in the holes. Initial pre-lubrication at assembly is required... |
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Typical Applications
This type of bushing is widely applied in Agricultural machine, construction machine, crane, underpan parts, conveyor, elevator, winch, planing machine... It can be fabricated into bushes, half bearings, flanged bushes, trust washers, spherical bearing and so on...
Technical Data of SB-090 / SB-09G / SB-T90 / SB-T90S
Wrapped Bronze Bushing
| Max.Loading |
Static |
120 N/mm² |
| Dynamic load |
40 N/mm² |
| Max.PV limit |
Grease lubrication |
2.8 N/mm²·m/s |
| Max.Speed |
2.5 m/s |
| Match the axis |
Hardness |
≥ 50HRC |
| Roughness |
Ra= 0.4 ~ 1.0 |
| Friction Coefficient |
|
0.05 ~ 0.25 |
| Tensile strength |
|
470 N/mm² |
| Yield Strength |
|
280 N/mm² |
| Hardness |
|
100~120 HB |
| Density |
|
8.8 g/cm³ |
| Temperature Range |
|
-100℃ ~ +200℃ |
| Thermal conductivity |
|
58 W(m·k)﹣¹ |
| Coefficient of thermal expansion |
|
18.5×10-6·K﹣¹ |
| * Initial pre-lubrication at assembly is required. |
Specifications of Through Holes for
SB-T90S Wrapped Bronze Bushing
Standard tolerance for SB-090 / SB-09G / SB-T90 / SB-T90S Wrapped Bronze Bushing
(As per to DIN 1494/ ISO3547)
Standard
Dia. |
O.D.
Size |
Housing Bore
(H7) |
I.D.Size after mounting
(H9) |
Matching Shaft Diameter
(f7 to f8) |
| 10~18 |
0.065 |
0.018 |
0.046 |
-0.016 |
| 0.03 |
0 |
0 |
-0.043 |
| 18~30 |
0.075 |
0.021 |
0.052 |
-0.02 |
| 0.035 |
0 |
0 |
-0.02 |
| 30~50 |
0.085 |
0.025 |
0.062 |
-0.025 |
| 0.045 |
0 |
0 |
-0.064 |
| 50~80 |
0.1 |
0.03 |
0.074 |
-0.03 |
| 0.055 |
0 |
0 |
-0.076 |
| 80~120 |
0.12 |
0.035 |
0.087 |
-0.036 |
| 0.07 |
0 |
0 |
-0.09 |
| 120~180 |
0.17 |
0.4 |
0.1 |
-0.043 |
| 0.1 |
0 |
0 |
-0.106 |
| 180~250 |
0.21 |
0.046 |
0.115 |
-0.05 |
| 0.13 |
0 |
0 |
-0.122 |
| 250~315 |
0.26 |
0.052 |
0.13 |
-0.056 |
| 0.17 |
0 |
0 |
-0.137 |
Other Wrapped Bronze Bushings
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| Gallery of Wrapped Bronze Bearings / Bushings / Thrust Washers |
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Wrapped bronze bushing
CuSn8, 25x28x35 mm |
Bronze bushing filled with graphites
CuSn8, 30x34x25 mm |
Wrapped bronze bushing
CuSn8, 28x31x20 mm |
Bronze Bearings made of CuSn8 with Lubrication Indents (MBZ-B09 Bushing) |
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| Bronze Bearings and Bronze Sleeve Bushings made of CuSn8 with Lubrication Indents |
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| Pressed Bronze Bearings CuSn8 with Lubrication Indents |
Stamped Bronze Bearings CuSn8 with Oil Through Hole |
Wrapped Bronze Bearings CuSn8 with Oil Through Hole |
Wrapped Bronze Bearings CuSn8 with Lubrication Indents |
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| Bronze Bearings and Bronze Sleeve Bushings made of CuSn8 with Lubrication Indents and Solid Lubricant Graphite |
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Bronze Bearings Made of CuSn8
Filled with Solid Lubricant Graphite |
Bronze Bearings Made of CuSn10Pb10
Filled with Solid Lubricant Graphite |
Bronze Bearings Made of CuSn8P
Filled with Solid Lubricant Graphite |
Bronze Bearings Made of CuSn6.5P
Filled with Solid Lubricant Graphite |
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