Manufacturer: Thomson Type:Multi Trac Ball Bushing Linear Bearings Model: MAM 20 Dimensions: Inner diameter d: 20 mm Outer diameter D: 32 mm Length C: 45 mm C1: 31.2 mm C2: 1.60 mm Design type: Closed Type Rows of Balls: 8 Dynamic load rating: 1000 N Static load rating: 2360 N