... thrust ball bearings, cylindrical roller bearings, taper roller bearings, spherical roller bearings, thrust roller bearings, needle roller bearings, pillow block ... non-standard special bearings, etc. Pulley type: window and door pulleys, shower pulleys, etc. Plastic Pulleys ... United States and Southeast Asia.Specification:Name: window roller, window pulley ,wheel2.Material:Nylon and bearing3.Surface ...