IG Step Ladder Multi Purpose Trestle DWM 40 Stroke_221^420mm Bore Type Round Bore Diameter Sold per 1 kg Bore Type Round Bore Diameter 85 mm Outside Diameter 150 mm Overall Width 28 mm Closure Type Double Shielded Row Type & Fill Slot Single Row Non Fill Slot Snap Ring Included Without Snap Ring Internal Clearance CN Operating Temperature Range 40 to 250 ºF Cage Type Pressed Dynamic Load Capacity 20680 lbf Static Load Capacity 14380 lbf Precision Rating ISO Class 0 Seal Type None Finish Coating Uncoated Bearing Material High Carbon Chrome Steel Cage Material Steel Inner Ring Width 28 860 g Specification values above are for model code MHSL3 80D M9BAL as published by SMC values vary by size which runs into the hundreds of kilograms