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80BB12H PITCH: #80 TEETH: 12 Bore: Standard

$48.27 Each


  • Typically ships in: 1 day
  • Weight: 1.5 lb
  • Free shipping on orders over $20

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Additional Description

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.
Material Steel Single Strand Tooth Thickness 0.575 in.
Chain Number 80 Hardened Teeth Yes
Chain Pitch 1.000 in. Bearing Type Ball Bearing
Number of Teeth 12 Bearing Bore Size 0.750 in.
Outside Diameter 4.330 in. Hub Outside Diameter 2.250 in.
Pitch Diameter 3.864 in. Length thru Bore 0.610 in.
Storage Dimension Length 3.864 in. Weight 1.50 lbs.
Storage Dimension Width 3.864 in. Individually Packaged Yes
Storage Dimension Height 0.610 in.


Number Of Teeth 12
Outside Dia 4.330"
Material Steel
Pitch 1.000 in.

Return policy

Item must be unused.

Item must be in it's original package.

Restocking, shipping and handling fees may apply to any return with this manufacturer.

For more information please consult


Product's availability

State of California Proposition 65 Product Warning