Needle Bearing Idler Sprockets
TECHNICAL SPECIFICATIONS: ANSI Chain Number: 50, No. of Teeth: 17, Shaft Type: Needle, Bore I.D.: 1", Outside Diameter: 3.719"
FEATURES & BENEFITS:
Steel needle-bearing idler sprockets maintain proper tension
Guides the chain around obstacles
Prevents excessive chain wear and vibration
Hardened steel teeth for durability
Requires tightener shaft, sold separately