| | SW64 1/4" Bore linear motion ball bushings/bearings, innerdiameter(bore) is 4" inch dimensions with steelretainer, Bearing is a high accuracy grade linear bushings,series mainly used in the USA, NB brand (Nippon Bearing Linear Systems), made in Japan.- Item: SW64 Linear Motion Ball Bushings
- Type: NB Systems Ball Bushings Linear Motion
- Quantity: One Bearing
- Size: 4" x 6" x 8" inch
- Inner Diameter: 4" inch
- Outer Diameter: 6" inch
- Length: 8" inch
- Dynamic load rating: 14,100 N
- Static load rating: 34,800 N
| Major dimensions and tolerance (inch) | Eccentricity | Radial clearance (inch) | | dr | D | L | B | W | D1 | Precision (inch) | High (inch) | | inch | tolerance | inch | tolerance | inch | tolerance | inch | tolerance | | Precision | High | | 4" | 0-.0004 | 0-.0008 | 6 | 0-.001 | 8 | 0-.016 | 6.258 | 0-.016 | 0.1389 | 5-3/4" | .0008-20 | .0012-30 | .0008-20 | |