Martin

Martin Accu-Torch® 78A12 Flame Cut Stock Bore Type A Engineering Sprocket, 1-1/4 in Dia Bore, 10-3/4 in OD, 78 Chain, 12 Teeth, 2.609 in Pitch, 10.081 in Dia Pitch, Steel

78A12 X 2-7/16 W/ER-39 MFG #: 78A12
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Martin Accu-Torch® 78A12 Flame Cut Stock Bore Type A Engineering Sprocket, 1-1/4 in Dia Bore, 10-3/4 in OD, 78 Chain, 12 Teeth, 2.609 in Pitch, 10.081 in Dia Pitch, Steel
  • Bore Diameter: 1-1/4 in
  • Chain Size: 78
  • Country of Origin: US
  • Hub Diameter: 5-1/4 in
  • Length Through Bore: 7/8 in
  • Manufacturer Name: Martin Sprocket & Gear
  • Material: Steel
  • Number of Teeth: 12
  • Outside Diameter: 10-3/4 in
  • Pitch: 2.609 in
  • Pitch Diameter: 10.081 in
  • Type: Flame Cut Stock Bore Type A
Martin Accu-Torch® steel sprockets are available for virtually all engineering class chains in style A, B, and C. Also available as split with welded hub and split or solid detachable hub. They can also be furnished as shear pin type. Where possible please specify chain number, pitch diameter, number of teeth, bore and keyway size, and hub style required. Accu-Torch® sprockets are not intended to replace cut tooth roller chain sprockets.
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  • Item Features
  • Application
  • Manufactured of high carbon steel
  • Precise machining and processes ensure consistent finish and high quality
For 7188, 433 1/2, 488, 578 R, 588 R, 75, 78, 81X, 87R, 88, 988, C 188, H 74, H 75, H 78, H 78 LR, (14, 18 teeth only), H 78 RT, H 78 SR, H 79, IS 880, IS 881, IS 882, LXS 881, LXS 882, LXS 886, LXS 887, R 588, R 778, RR 588, RR 778, S 188, S 78, SS 188, US 278 R, US 881, US 882 and XS 578 chains