Products > Transmission > Chains > Industrial > Rolon Standard > Roller Chains About Chains   Rolon Standard Roller Chains   Rolon Chain No.  Chain Designation  Pitch Width between Inner plates Roller Diameter Pin Diameter Pin Width Connection Pin Width Overall Width Inner Plate Height Ultimate Tensile Strength Average Weight Spring Clip Cotter P mm W (min.) mm d1 (max.) mm d2 (max.) mm b1 (max.) mm b2 (max.) mm b3 (max.) mm b4 (max.) mm h (max.) mm (min.) kgf kg/m # R 940 3/8" * 5/32" 9.525 4.00 6.35 3.28 11.20 12.20 12.70 13.65 8.16 900 0.37 # R 957T 3/8" * 7/32" 9.525 5.90 6.35 3.31 14.10 15.10 - - 8.32 1250 0.46 R 1248 1/2" * 3/16" 12.70 4.90 7.75 3.68 11.40 12.20 12.80 13.80 9.92 820 0.35 R 1253 1/2" * 3/16" 12.70 5.25 7.75 4.09 13.10 14.20 - 15.65 10.36 1500 0.46 R 420 1/2" * 1/4" 12.70 6.40 7.77 3.96 14.90 16.00 16.50 17.50 11.71 1600 0.61 R 1252 1/2" * 5.3mm 12.70 5.30 8.51 4.45 14.10 15.50 15.70 17.30 11.71 1820 0.59 # R 1278T 1/2" * 5/16" 12.70 8.00 8.51 4.45 17.10 18.45 - - 11.88 1900 0.93 R 428 1/2" * 5/16" 12.70 8.00 8.50 4.51 16.90 18.30 20.00 21.20 11.71 1900 0.70 SC 135 1/2" * 3/16" 12.70 4.90 7.75 4.09 11.60 12.80 - - 10.36 1300 0.45 R 1548 5/8" * 3/16" 15.875 4.90 7.75 3.68 11.40 12.20 12.80 13.80 9.92 820 0.30 R 1564 5/8" * 1/4" 15.875 6.65 10.16 5.08 16.10 17.10 17.60 19.24 14.26 2270 0.60 R 520 5/8" * 1/4" 15.875 6.35 10.16 5.08 17.45 18.75 - - 15.00 2700 1.06 R 525 5/8" * 3/8" 15.875 9.55 10.16 5.18 20.60 21.70 - - 15.00 2700 1.06 SC 221 3/4" * 7/32" 19.05 13.50 12.07 5.72 26.80 28.10 - 30.90 16.80 3415 1.57 SC 222 3/4" * 11.7 19.05 11.70 12.07 6.10 24.90 26.30 - 29.10 16.80 4080 1.45 $ Bush Chain # Straight sided plate Chain * Available in Straight and Curved plates    Multistrand Chains also available

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