Martin

Martin 40BB18H 1/2 BB-H Ball Bearing Type A Idler Roller Chain Sprocket, 1/2 in Dia Bore, 3.14 in OD, 40 Chain, 18 Teeth, 1/2 in Pitch, Steel

40BB18H 1/2 MFG #: 40BB18H 1/2
$87.16 / EA
Non-Stock Item
Martin 40BB18H 1/2 BB-H Ball Bearing Type A Idler Roller Chain Sprocket, 1/2 in Dia Bore, 3.14 in OD, 40 Chain, 18 Teeth, 1/2 in Pitch, Steel
  • Bore Diameter: 1/2 in
  • Chain Size: 40
  • Country of Origin: US
  • Hub Diameter: 2.032 in
  • Length Through Bore: 0.72 in
  • Manufacturer Name: Martin Sprocket & Gear
  • Material: Steel
  • Number of Teeth: 18
  • Outside Diameter: 3.14 in
  • Pitch: 1/2 in
  • Pitch Diameter: 2.879 in
  • Series: BB-H
  • Type: Ball Bearing Type A
Martin idlers are smooth-running and available in oil-impregnated, sintered bronze, extra-duty bearing press-fitted in sprocket and a hardened steel journal case for maximum resistance to wear. Steel sprockets used in Martin idlers are accurately machined (not stamped) the same as sprockets normally supplied for power transmission use. Martin can also alter existing sprockets and install bearings to make custom idlers.
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