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DeutschWater Lubricated Brass Bearing
The #50SP1-SL4 water lubricated brass bearing is constructed from high-strength ordinary brass with HB>210 by adoption of state-of-the-art casting technology. It is a type of oil-less bearing inset with water lubricant. Based on working conditions, a certain proportion of holes are drilled on its wear-resistant surface. Mechanical strength of the product is similar to that of #50SP1-SL1.
Features
1. The water lubricated brass bearing is ideal for use at heavy load and low speed.
2. SL-4 lubricant is mainly composed of PTFE, thus featuring superb water lubrication and extremely low coefficient of friction. Operating temperature of SL-4 is less than 300 degrees Celsius.
3. #50SP1-SL4 is particularly suitable for seawater lubrication. For instance, it can be applied in water turbines or ships. Also, it can act as a pharmaceutical machinery bearing or a beverage machine bearing.
Technical Parameters
Material |
#50SP1-SL1 CuZn25Al6 FeMn3 |
#50SP1-SL4 CuZn25Al6 FeMn3 |
#50SP5-SL1 CuZn25Al6 FeMn3 |
#50HP CuZn25Al6 FeMn3 |
#50AB-SL1 CuAl10Ni |
#50AB-SL4 CuAl10Ni |
#50B CuSn12 |
| Cu | 65 | 65 | 65 | 65 | 80 | 80 | 88 |
| Sn | 12 | ||||||
| Pb | 25 | 25 | 25 | 25 | |||
| Zn | 6 | 6 | 6 | 6 | |||
| Ni | 5 | 5 | |||||
| Al | 10 | 10 | |||||
| Fe | 5 | 5 | |||||
| Mn | 4 | 4 | 4 | 4 | |||
| Hardness HB |
>180 | >180 | >235 | >250 | >150 | >150 | >80 |
| Tensile strength N/mm² |
>550 | >550 | >750 | >785 | >200 | >200 | >200 |
| Elongation ％ |
>12 | >12 | >10 | >10 | >8 | >8 | |
| Coefficient of expansion |
1.9×10-5/℃ | 1.9×10-5/℃ | 1.9×10-5/℃ | 1.6×10-5/℃ | 1.8×10-5/℃ | 1.8×10-5/℃ | |
| Limited Temp ℃ |
300~400 | 300~400 | 300~400 | 400 | 400 | 400 | |
| Max load N/mm² |
80 | 100 | 118 | 50 | 70 | 70 | |
| MAX SPEED M/min |
15 | 15 | 10 | 20 | 10 | 10 | |
| Max PV N/mm2*m/s |
200 | 200 | 200 | 200 | 200 | 200 | |
| Compression set amount 400 N/mm² |
<0.01 | <0.01 | <0.05 | <0.04 | <0.05 | <0.05 |
