Track Roller Specifications: a) Diameter: 135mm b) Sprocket bearing of conveyer			Agricultural Bearing Superior quality bearing for agricultural machinery. W210PP2, GW208PPB5, W210PPB2, W211PPB3, G206KRR...
	Track Roller Specifications: a) Diameter: 82mm b) Sprocket bearing of conveyer			Track Roller Specifications: a) Diameter: 75mm b) Non - standard bearing c) Sprocket bearing of conveyer
	Self - Aligning Ball Bearing Specifications: a) Self - alignment ability b) Compensates for different degree and axle errors