Brand: SureMotion Item: Single pillow block Housing Material: Aluminum For Use With: 1in diameter SureMotion shafts Overall Length: 2.63in Block Type: Open type Bearing Type: Linear ball bearing Housing Fit: Self-aligning Bearing Inside Diameter: 1in SureMotion single pillow block, linear ball bearing, 2.63in overall length, 1in inside diameter, aluminum housing. For use with 1in diameter SureMotion shafts.