Features & Benefits
- Includes 2 pieces of 47 inch long rail shaft and 4 SBR20UU blocks
- Made of carbon steel and quality bearing steel with aluminum alloy housing
- Combination of the main axle bearing rail and aluminum alloy support, nicely stabilizes the original rail
- Easy installation with no need for maintenance
- Widely used in automation machinery like CNC routers, laser welding machines, etc.