Wrapped CuSn8 bearings

Wrapped CuSn8 bearings (B09) are characterised by their durability and high quality. CuSn8 bearings usually have diamond-shaped lubrication chambers, but other designs are possible. They are well suited to applications with high loads or in situations where a large amount of dirt and contamination can occur.

The bearings are produced from bronze strips. The material CuSn8 is a high-quality phosphor tin bronze with excellent sliding properties. It is particularly suitable in situations that demand high durability, corrosion resistance, bearing life and heat transfer.

THN has a wide standard range of CuSn8 bearings in stock. This stock comprises cylindrical bearings, collar bearings, thrust washers and slide plates. In addition to our standard range, we can also deliver bearings with different dimensions and tolerances.

Most of our stock consists of cylindrical bearings and collar bearings in shaft diameters from 10 to 300 mm. Our stock includes bearings with diamond-shaped lubrication chambers as well as perforated bushings.

The key properties of wrapped CuSn8 bearings:

Save space and weight compared to roller bushes and ball bearings
Operate under both light and heavy loads
Are highly suited to oscillating movements
Are low maintenance and suitable for rough operations
Are less sensitive to dirt due to the lubrication chambers
Provide extremely good corrosion resistance
Offers good resistance against shock loads

The suitability of wrapped CuSn8 bearings is as follows:

Conditions	CuSn8
Dry	Not suitable
Oil	Good
Grease	Good
Water	Not suitable
Process fluid	Not suitable

Technical data

Permitted loads for the wrapped CuSn8 bearings are as follows:

Mechanical value	Unit	CuSn8
Max. PV value	N/mm²·m/s	2,8
Max. load P static	N/mm²	120
Max. load P dynamic	N/mm²	40
Max. running speed V	m/s	2,5
Maximum temperature	°C	+ 150
Minimum temperature	°C	- 40

* With very slow movements, loads up to150 N/mm² can be achieved with sufficient lubrication.