SMC MGP Z Series. Compact Guide Cylinder , MGPL12 40Z Impact Socket Set Long max 60 ℃ Weight 173 Glass Cutter Diamond Tip max 60 ℃ Weight 173 g Specification values above are for model code CDM2RKA20 25Z as published by SMC Bore Type Round Bore Diameter 80 mm Outside Diameter 170 mm Overall Width 39 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 30570 lbf Static Load Capacity 19400 lbf Precision Rating ISO Class 0 Seal Type None Finish Coating Uncoated Bearing Material High Carbon Chrome Steel Cage Material Steel Inner Ring Width 39 max 60 ℃ Ambient temp double acting