40B30 Roller Chain Sprocket, #40 Chain, 3 Teeth, B Hub


Price:
$ 43.22

Description

40B30 Roller Chain Sprocket, #40 Chain, 3 Teeth, B Hub

The 40B30 is a 3-tooth sprocket for ANSI #40 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.

$50 minimum order on drive components. Mix and match any pulleys, bushings, sheaves, sprockets, and accessories in your cart to reach the $50 minimum. Questions? Call (888) 203-2358.

Specifications

Specification Value
Part Number 40B30
Chain Size ANSI #40
Teeth 3
Hub Style B
Strands 1
Outside Diameter 5.057 in
Pitch Diameter 4.783 in
Bore 5/8 in minimum plain bore
Maximum Bore 2.25 in
Material Steel (no sintered or powdered metal)
Weight 2.98 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 #40 is a standardized roller chain size, so the 40B30 runs #40 chain from any manufacturer in the same pitch.

Cross Reference

The 40B30 interchanges with these equivalent part numbers, per published manufacturer interchange data:

Manufacturer Equivalent Part Number
Dodge® 105040
Martin 40B30
US Tsubaki 40B30
Regal Rexnord (Browning®) 40B30
Ametric 40B30
McMaster-Carr 2590K44
Powerdrive 40B30

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 40B30 sprocket run?

ANSI #40 roller chain. The size is standardized, so #40 chain from any manufacturer fits.

Does the 40B30 replace the Dodge 105040?

Yes. Published interchange data crosses the 40B30 directly to the Dodge 105040, as well as Martin 40B30, US Tsubaki 40B30, Regal Rexnord 40B30. Verify dimensions and bore before ordering.

Does the 40B30 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 40B30?

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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