02 kN, Axial Load - Maximum Not Applicable, Manufacturer Size 21, Dynamic Load Capacity 8.8 mm, Carriage Width 68 mm, Carriage Material Carbon Steel, Roller Material Carbon Steel, Radial Load - Maximum 8.02 kN, Requires Lubrication Lubricant Required, Carriage Type Ball, For Rail Width 37 mm, For Use With Profile Rail, Static Load Capacity 12.