This #40 SK1 attachment roller chain has SK1 links spaced every 2nd pitch, which is a 1" spacing between attachments. The #40 SK1 attachment link has one straight tab with one hole. Nitro™ attachment roller chain is manufactured in a riveted construction for optimum strength.
Inner Width (b1):0.312''
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''
Tab Width (G):0.375''
Height To Hole (C):0.500''
Height To Tab Top (F):0.750''
Attachment Hole Diameter (d4):0.133"
Attachment Spacing (S):1.000''
Average Tensile Strength:4,079 lbs
Max Working Load:816 lbs
No. Of Pitches/Links Per 10 Feet:240
No. Of Connecting Links Included:1
Chain Material:Carbon/Alloy Steel
ANSI Chain Size:40
Industry Standard:ANSI B29.1
Product Care & Maintenance
Maintenance and lubrication is crucial in the overall performance and life span of roller chain. Proper lubrication will reduce abrasion, chain wear, friction, noise and keep chains running cooler at higher RPM's. You can download the Nitro Roller Chain Care below.