TYBF Cast bronze with graphite oilless bearings
It has a backing made of bronze with particular formulation supported by certain angle and density. The solid lubricants inlaid in the bushing are compounded with precision. It's used in successive casting machine, mineral mountain machinery, shipping, steam turbine etc.
| TYB Standard | TYB-1 | TYB-2 |
|---|---|---|
| Cu% | 65 | 65 |
| Sn% | ||
| Pb% | ||
| Zn% | 25 | 25 |
| Ni% | ||
| Al% | 6 | 6 |
| Fe% | ||
| Mn% | 4 | 4 |
| density | 8.0 | 8.0 |
| Hardnness HB | >210 | >250 |
| Tensile strength N/mm2 | >750 | >800 |
| Elongation % | >12 | >4 |
| Cofficient of linear expansion | 1.9﹡10 ﹣5/℃ | 1.9﹡10 ﹣5/℃ |
| surface friction coefficient | 0.03～0.20 | 0.03～0.20 |
| thermal conduction | 60W(m*K)﹣1 | 60W(m*K)﹣1 |
| Limit Temp. | 300℃ | 300℃ |
| Max.Load N/mm2 | 100 | 150 |
| Max.Speed m/min | 15 | 10 |
| Max.PV N/mm2﹡m/min | 200 | 200 |
| Dimension | Unit pressure | Sliding velocity | Lubricatedweartes | Angle of oscillation | Axle | Testing time |
|---|---|---|---|---|---|---|
| 40*50* L30 | P=250kgf/cm2 (24.5N/mm2) | V=1.0 m/min (0.0166m/s) | unlubricated friction | ∝ =90° ( ± 45°) | 45#HRC42 - 45Ra0.8 |
| Unit(mm) | |||||||||||||||||
| d | D | IDE7 | ODr6 | F | l 1 -0.010 |
L -0.10 -0.30 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 20 | 25 | 30 | 35 | 40 | 50 | 60 | 80 | 100 | ||||||||
| 50 | 60 | 50 | +0.075 +0.050 |
60 | +0.060 +0.041 |
75 | 5 | TYBF 5030 |
TYBF 5040 |
TYBF 5050 |
TYBF 5060 |
||||||
| 55 | 65 | 55 | +0.090 +0.060 |
65 | 80 | TYBF 5540 |
TYBF 5560 |
||||||||||
| 60 | 75 | 60 | 75 | +0.062 +0.043 |
90 | 7.5 | TYBF 6040 |
TYBF 6050 |
TYBF 6080 |
||||||||
| 63 | 75 | 63 | 75 | 85 | TYBF 6367 |
||||||||||||
| 70 | 85 | 70 | 85 | +0.073 +0.051 |
105 | TYBF 7050 |
TYBF 7080 |
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| 75 | 90 | 75 | 90 | 110 | TYBF 7560 |
||||||||||||
| 80 | 100 | 80 | 100 | 120 | 10 | TYBF 8060 |
TYBF 8080 |
TYBF 80100 |
|||||||||
| 90 | 110 | 90 | +0.107 +0.072 |
110 | +0.076 +0.051 |
130 | TYBF 9060 |
TYBF 9080 |
|||||||||
| 100 | 120 | 100 | 120 | 150 | TYBF 10080 |
TYBF 100100 |
|||||||||||
| 120 | 140 | 120 | 140 | +0.088 +0.063 |
170 | TYBF 12080 |
TYBF 120100 |
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