B60 Bronze bearing bushes
TECHNICAL DATA
| 60 M1 | 60 M2 | 60 M3 | 60 M4 | 60 M5 | 60 M6 | 60 M7 | |
| Structure Cu % | 65 | 85 | 80 | 88 | 80 | 65 | 76 |
| Structure Sn % | 5 | 12 | 10 | 8 | |||
| Structure Pb % | 5 | 10 | 15 | ||||
| Structure Zn % | 25 | 5 | 25 | ||||
| Structure Ni % | 5 | 1 | |||||
| Structure Al % | 6 | 10 | 6 | ||||
| Structure Fe % | 5 | ||||||
| Structure Mn % | 4 | 4 | |||||
| Density | 8,0 | 8,8 | 7,6 | 8,8 | 8,9 | 8,0 | 9,1 |
| Hardness HB | > 210 | > 70 | > 150 | > 95 | > 75 | > 250 | > 60 |
| Tensile strength | > 750 N/mm2 | > 250 N/mm2 | > 500 N/mm2 | > 270 N/mm2 | > 210 N/mm2 | > 800 N/mm2 | > 180 N/mm2 |
| Elongation % | > 12 | > 15 | > 10 | > 5 | > 8 | > 8 | > 8 |
Turned bearings are often technically and economically favourable bearing solutions. They are being turned from centrifugal casted semi finished products. High loading capability, low weight, good corrosion resistance and small radial diameters are some good properties for turned bearings. The choice of the suitable material and the arrange of additional lubrication properly are important.
Turned bearings and bearing elements can be manufactured in several copper alloys. The material will be chosen to meet the specific needs for each construction. This is important to reach the optimal performance for the life time, service and total economy. Properties for the standard materials are on the table.
Turned bearings can be manufactured with tighter tolerances than wrapped thin walled bearings. The tolerance can be adapted to the needs of the construction. Therefore it is possible to reach the clearance which is wanted.
Turned bearings are always manufactured according to customer drawings. Therefore the bearing can be designed to meet the needs of the specific construction. The design of lubrication grooves, quantity of the lubrication holes, tolerances and chamfering can be manufactured according to customer needs.
Turned bearings from copper alloys are aimed to be additionally lubricated. The need of the additional lubrication depends on the bearing material and the general conditions of the bearing solution. The design of the lubrication grooves, the choice of the lubricate and the general conditions of the bearing solution affect how the additional lubrication should be arranged. With the right material and design can also turned bearings be used with quite a long lubrication intervals.
