21H150-6FS8 Timing Pulley, 21 Teeth, H Pitch


Price:
$ 81.22

Description

21H150-6FS8 Timing Pulley, 21 Teeth, H Pitch

The 21H150-6FS8 is a 21-tooth H (0.500 in trapezoidal) timing pulley with a 3/4 in minimum plain bore, machined from ductile iron with a black oxide finish, built for 1.5 in wide belts. Machined from solid stock, never sintered or powdered metal.

Specifications

Type 6FNOKEY pulley construction dimension diagram

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

Specification Value
Part Number 21H150-6FS8
Teeth 21
Pitch H (0.500 in trapezoidal)
For Belt Width 1.5 in
Pitch Diameter 3.3423 in
Outside Diameter 3.2883 in
Flange Diameter 3.574 in
Bore 3/4 in minimum plain bore
Face Width 1.812 in
Overall Length 2.625 in
Hub Diameter 2.625 in
Construction Standard Hub
Flange Material Steel
Material Ductile Iron (no sintered or powdered metal)
Finish Black Oxide
Weight 4.747 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 21H150-6FS8 runs H (0.500 in trapezoidal) belts in 1.5 in width. The pitch is standardized, so belt and pulley brands can be mixed.

Cross Reference

The 21H150-6FS8 interchanges with these equivalent part numbers, per published manufacturer interchange data:

Manufacturer Equivalent Part Number
Dodge® 21H150-MPB
Martin 21H150
TB Woods® 21H150
Regal Rexnord (Browning®) 21HB150
Mitsuboshi 21H150-6FS8
McMaster-Carr 6495K99
Grainger 809V66
Powerdrive 21H150-6FS8
Continental (ContiTech) 21H150-3/4

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 21H150-6FS8 pulley?

H (0.500 in trapezoidal) timing belts in 1.5 in width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.

Does the 21H150-6FS8 replace the Dodge 21H150-MPB?

Yes. Published interchange data crosses the 21H150-6FS8 directly to the Dodge 21H150-MPB, as well as Martin 21H150, TB Woods 21H150, Regal Rexnord 21HB150. Verify dimensions and bore before ordering.

Does the 21H150-6FS8 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 21H150-6FS8?

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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