GA Braun Idler Sprocket, 5/8″ Ball Bearing 18T 40BB18H – 031991802

Idler sprocket used in chain drive systems to maintain proper tension and guide roller chain movement in GA Braun laundry equipment.

Specs

• Material: Steel sprocket with integrated ball bearing
• Dimensions: 18 tooth (#40 chain), 5/8 inch bore
• Compatibility: GA Braun equipment (part numbers 031991802, 90-917, 40BB18H)

When to Replace

Replace when teeth show hooking, wear, or deformation, or when bearing becomes noisy, loose, or seized. Worn sprockets and failed bearings cause improper chain tracking, increased vibration, and accelerated chain wear, leading to potential drive failure.