Linear Bearing Ball Carriage, Carriage Height 50.8 mm, Carriage Length 99.1 mm, Carriage Width 120 mm, Carriage Material Steel Alloy, Roller Material Steel Alloy, Radial Load - Maximum 1,147 N, Axial Load - Maximum 1,147 N, Manufacturer Size 30, Dynamic Load Capacity 61,900 N, Requires Lubrication Lubricant Required, Carriage Type Ball, For Rail Width 45 mm, For Use With 500 Series Ball Rail, Static Load Capacity 134,800 N, Combined Carriage and Rail Height 60 mm, Series 500