QD31H100 Timing Pulley, 31 Teeth, H Pitch


Price:
$ 127.72

Description

QD31H100 Timing Pulley, 31 Teeth, H Pitch

The QD31H100 is a 31-tooth H (0.500 in trapezoidal) timing pulley. It mounts with an industry-standard bushing, sold separately, machined from ductile iron with a black oxide finish, built for 1 in wide belts. Machined from solid stock, never sintered or powdered metal.

Specifications

Type B1F pulley construction dimension diagram

Dimension key for this construction type. Values for this part number are in the table below.

Specification Value
Part Number QD31H100
Teeth 31
Pitch H (0.500 in trapezoidal)
For Belt Width 1 in
Pitch Diameter 4.9338 in
Outside Diameter 4.8798 in
Flange Diameter 5.32 in
Bore Accepts SD bushing (not included)
Face Width 1.312 in
Overall Length 1.312 in
Construction Quick Disconnect Hub
Flange Material Steel
Material Ductile Iron (no sintered or powdered metal)
Finish Black Oxide
Weight 5.073 lb
Country of Origin United States. ISO 9001:2015 certified manufacturing.

Applications

  • Instrumentation, office equipment, and precision positioning drives
  • 3D printers and desktop CNC equipment
  • Robotics, medical devices, and packaging machinery

Belt Compatibility

The QD31H100 runs H (0.500 in trapezoidal) belts in 1 in width. The pitch is standardized, so belt and pulley brands can be mixed.

Cross Reference

The QD31H100 interchanges with these equivalent part numbers, per published manufacturer interchange data:

Manufacturer Equivalent Part Number
Martin 31H100 SD
TB Woods® 31H100
Regal Rexnord (Browning®) 31H100SD
Mitsuboshi QD31H100
Jason Industrial 31H100SD
Ametric 31H100.SD
Powerdrive QD31H100
Continental (ContiTech) 31H100-SD

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 belts fit the QD31H100 pulley?

H (0.500 in trapezoidal) timing belts in 1 in width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.

Does the QD31H100 replace the Martin 31H100 SD?

Yes. Published interchange data crosses the QD31H100 directly to the Martin 31H100 SD, as well as TB Woods 31H100, Regal Rexnord 31H100SD, Mitsuboshi QD31H100. Verify dimensions and bore before ordering.

Does the QD31H100 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 QD31H100?

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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