Nitro™ #40 O-Ring Roller Chain - 10ft Box

40 o-ring roller chain is for drives where lubricating the roller chain is extremely difficult. Our #40 O-ring chain uses and o-ring between the two link plates, which seals lubricant into the "bearing" area of the chain. Another benefit is the o-ring keeps dust, dirt and other abrasive materials out. All o-ring roller chain should be lubricated periodically to prevent the o-ring from drying out and cracking.

40 O-Ring Roller Chain Dimensions

• Pitch (P):1/2''
• Inner Width (b1):5/16''
• Roller Diameter (d1):0.312''
• Overall Width (L):0.653''
• Pin Diameter (d2):0.156''
• Link Plate Height (h2):0.469''
• Link Plate Thickness (T):0.060''
• Average Tensile Strength:3,900 lbs
• Max Working Load:830 lbs
• No. Of Pitches/Links Per 10 Feet:240
• No. Of Connecting Links Included:1
• Chain Material:Carbon/Alloy