#25 Chain Roller Sprocket 12mm Bore 1/4" Pitch 16 Tooth Type B Sprocket 2Pcs OD 1.5" Drill Hole Diameter: 70 mm

Drill Hole Diameter: 70 mm / 2

temperature and humidity have little influence on it

High noise reduction and thermal insulation properties

Door brush is designed to seal the gap between the bottom of the door and the top of the threshold or floor surface

#25 Chain Roller Sprocket 12mm Bore 1/4" Pitch 16 Tooth Type B Sprocket 2Pcs OD 1.5" Drill Hole Diameter: 70 mmFeatures: 1. Chain Sprockets are normally mounted in a fixed position on a fixed shaft. Round hole with 2pcs Set Screws at 90 degrees. The shaft can be fixed well, which is convenient to use. 2. The chain sprocket should not rotate at a greater speed than is allowable for drive sprockets of the same size. Every roller chain sprocket comes with strong teeth that can latch onto the chain. It is suggested that chain sprockets have at least three teeth in