20pcs V623ZZ Miniature Steel V- Pulley Rail Ball Bearing Miniature Pulley Bearing Pulley 3x12x4mm for Rail Track Liner Motion System
Special Features
- These bearings are made from high quality carbon steel for durability and long service life
- There comes total 20 pieces bearings which you may use for many different projects
- They are double shielded to avoid contaminants entering and save lubricant
- Bearings have 1.4mm deep V groove that generally ride on a rail or track
- These are bearings that are used in many linear motion systems
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