PBC Linear MR7C Linear Slide Roller Carriage, MiniRail Series, For 7 mm Rail Width, Aluminum 4XK73 270 lb Pallet Rack Configuration 270 lb Pallet Rack Configuration Starter Metal Forming Type Roll Formed Hand and Power Tool Use For Rail Width 7 mm 000 lb sq in fpm Dynamic Load Capacity 165 lbf Number of Mounting Holes 4 Bearing Type Plain Requires Lubrication Lubricant Not Required Axial Load Maximum 89 N System of Measurement Metric Operating Temperature Minimum 400 Degrees F Bearing Retention Bearings Retained Speed Maximum 60 in sec Radial Load Maximum 445 N Operating Temperature Maximum 400 Degrees F Accuracy Tolerance 7 mm Country of Origin United States