This #40 A1 attachment roller chain has A1 links spaced every 2nd pitch, which is a 1" spacing between attachments. The #40 A1 attachment link is a 90 degree bent tab that has one hole. Nitro™ attachment roller chain is manufactured in a riveted construction for optimum strength.
40 A1/2P Attachment Roller Chain Dimensions
Inner Width (b1):5/16"
Roller Diameter (d1):0.312"
Overall Chain 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"
Center to Center Tab Distance (S):1.000"
Hole Diameter (d4):0.134"
Centerline To Hole (F/2):0.500"
Centerline To Tab End (W/2):0.692"
Average Tensile Strength:3,900 lbs
Max Working Load:830 lbs
No. Of Links/Pitches Per 10ft:240
No. Of Connecting Links Included:5
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.