China Professional Bearings SN517 plummer pillow block bearing SN517

Pillow blocks

Pillow blocks are usually referred to the housings which have a bearing fitted into them and thus the user need not purchase the bearings separately. Pillow blocks are usually mounted in cleaner environments and generally are meant for lesser loads of general industry. 

The fundamental application of both types is the same which is to mount bearings safely enabling their outer ring to be stationary while allowing rotation of the inner ring. The housing is bolted to a foundation through the holes in the base. Bearing housings are either split type or unsplit type. Split type housings are usually two piece housings where the cap and base can be detached, while certain series are one single piece housings. Various seals are provided to prevent dust and other contaminants from entering the housing. Thus the housing provides a clean environment for the expensive bearings to freely rotate, hence increasing their performance and duty cycle.

Bearing housings are usually made of grey cast iron. However various grades of metals can be used to manufacture the same.

ISO 113 specifies internationally accepted dimensions for plummer blocks.

We are SWD International Trade Co. Ltd., We major in types of bearings. We have our own factory, full automation, professional production, provide all kinds of domestic and imported bearings. Our goods are exported to Europe, America and manycountries and regions,by the buyer's consistent high praise, if you have any questions, don't hesitate to contact me.

1. We have more than ten years experiences in exporting bearing products.

2. OEM order and non-standard bearing order can be accepted.

3. Large quantity bearing can be provided, including any model and size.

4. You can choose the loading port.

5. We can provide certain number of free samples and after-sale services