Martin

Martin 25NB19H 1/2 NB Series Needle Bearing Type B Idler Roller Chain Sprocket, 5/8 in Dia Bore, 1.648 in OD, 25 Chain, 19 Teeth, 1/4 in Pitch, Steel

25NB19H 1/2 MFG #: 25NB19H 1/2
$142.06 / EA
Non-Stock Item
Martin 25NB19H 1/2 NB Series Needle Bearing Type B Idler Roller Chain Sprocket, 5/8 in Dia Bore, 1.648 in OD, 25 Chain, 19 Teeth, 1/4 in Pitch, Steel
  • Bore Diameter: 5/8 in
  • Chain Size: 25
  • Country of Origin: US
  • Hub Diameter: 1.229 in
  • Length Through Bore: 3/4 in
  • Manufacturer Name: Martin Sprocket & Gear
  • Material: Steel
  • Number of Teeth: 19
  • Outside Diameter: 1.648 in
  • Pitch: 1/4 in
  • Pitch Diameter: 1.518 in
  • Series: NB Series
  • Type: Needle Bearing Type B
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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