Add products to your shopping cart

Image for Illustration purposes only. Actual product may vary

50BR13 1/2 PITCH: #50 TEETH: 13 Bore: 1/2 INCH

$30.18 Each


  • Typically ships in: 1 day
  • Weight: 0.9 lb
  • Free shipping on orders over $20

Select Quantity

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 Hardened Teeth Yes
Chain Number 50 Hub Configuration B
Chain Pitch 0.625 in. Bearing Type Bronze Bearing
Number of Teeth 13 Bearing Bore Size 0.500 in.
Outside Diameter 2.910 in. Hub Outside Diameter 1.875 in.
Pitch Diameter 2.612 in. Length thru Bore 0.875 in.
Single Strand Tooth Thickness 0.343 in.
Storage Dimension Length 2.910 in. Weight 0.70 lbs.
Storage Dimension Width 2.910 in. Individually Packaged Yes
Storage Dimension Height 0.875 in.


Number Of Teeth 13
Outside Dia 2.910"
Material Steel
Pitch 0.625 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