This v- ball bearing is made of high quality steel material for durability and long service life, smooth operation, small error, low noise, high speed.
rail bearing is suitable for motor, toys, model, instrument and meter, electric tools, communication equipment, fitness equipment and other fields.
Bearing has a V that generally rides on a rail.Internal bearing sealed ball have low friction coefficient, which make bearing run smoothly and flexibly.
The bearings in these wheel are 625, with a 5mm inner diameter. There are total 20 pieces of wheels in one set, which you may use for many projects.
We care for every customer's feeling.If this product does not meet or exceed your expectations, please send it back for a 100% refund no questions asked.
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