50B31 Roller Chain Sprocket, #50 Chain, 31 Teeth, B Hub


Price:
$ 53.01

Description

50B31 Roller Chain Sprocket, #50 Chain, 31 Teeth, B Hub

The 50B31 is a 31-tooth sprocket for ANSI #50 roller chain with a B style hub, machined from steel. Machined from solid stock, never sintered or powdered metal, which matters on sprockets where tooth wear sets the replacement interval.

Specifications

Specification Value
Part Number 50B31
Chain Size ANSI #50
Teeth 31
Hub Style B
Strands 1
Outside Diameter 6.521 in
Pitch Diameter 6.178 in
Bore 3/4 in minimum plain bore
Maximum Bore 2.25 in
Material Steel (no sintered or powdered metal)
Weight 1.81 lb
Country of Origin China

Applications

  • Roller chain drives on conveyors and material handling equipment
  • Agricultural machinery and implement drives
  • Packaging machinery and light industrial drives

Chain Compatibility

ANSI #50 is a standardized roller chain size, so the 50B31 runs #50 chain from any manufacturer in the same pitch.

Cross Reference

The 50B31 interchanges with these equivalent part numbers, per published manufacturer interchange data:

Manufacturer Equivalent Part Number
Martin 50B31
US Tsubaki 50B31
Ametric 50B31
Powerdrive 50B31

Always verify dimensions and bore size before substituting part numbers across manufacturers.

Buying in bulk? Save on volume.

Multi-unit and OEM quantities qualify for volume discounts. Call or email for a quantity quote.

Frequently Asked Questions

What chain does the 50B31 sprocket run?

ANSI #50 roller chain. The size is standardized, so #50 chain from any manufacturer fits.

Does the 50B31 replace the Martin 50B31?

Yes. Published interchange data crosses the 50B31 directly to the Martin 50B31, as well as US Tsubaki 50B31, Ametric 50B31, Powerdrive 50B31. Verify dimensions and bore before ordering.

Does the 50B31 ship from Houston?

Yes. Stock items ship same day from our Houston, Texas warehouse. Call (888) 203-2358 to confirm availability.

Need a quote on 50B31?

Houston warehouse, same-day shipping on stock items.

Call (888) 203-2358

All third-party part numbers and trademarks referenced are the property of their respective owners. References are for compatibility identification only and do not imply affiliation or endorsement.

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