IG Step Ladder Multi Purpose Trestle DWM 40 Stroke_221^420mm Bore Type Round Bore Diameter Specification MHZ2 6D2 M9BWM 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 max 60 ℃ Lubrication Non lube Weight 183 g Specification values above are for model code CDM2B20 50Z as published by SMC Contact us if you need the figures for a specific size values vary by size