120HR300 Timing Pulley, 12 Teeth, H Pitch


Price:
$ 710.19

Description

Representative image shown. Actual product appearance varies by size, bore, and configuration. Refer to the specifications table for exact dimensions of this part number.

120HR300 Timing Pulley, 12 Teeth, H Pitch

The 120HR300 is a 12-tooth H (0.500 in trapezoidal) timing pulley. It mounts with an industry-standard bushing, sold separately, machined from cast iron, built for 3 in wide belts. Machined from solid stock, never sintered or powdered metal.

Specifications

Type 14 pulley construction dimension diagram

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

Specification Value
Part Number 120HR300
Teeth 12
Pitch H (0.500 in trapezoidal)
For Belt Width 3 in
Pitch Diameter 19.0986 in
Outside Diameter 19.0446 in
Bore Accepts R1 bushing (not included)
Face Width 3.313 in
Overall Length 3.813 in
Construction Split Taper Hub
Material Cast Iron (no sintered or powdered metal)
Weight 44.2 lb
Country of Origin China

Applications

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

Belt Compatibility

The 120HR300 runs H (0.500 in trapezoidal) belts in 3 in width. The pitch is standardized, so belt and pulley brands can be mixed.

Cross Reference

The 120HR300 interchanges with these equivalent part numbers, per published manufacturer interchange data:

Manufacturer Equivalent Part Number
Regal Rexnord (Browning®) 120HR300
Powerdrive 120HR300

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 120HR300 pulley?

H (0.500 in trapezoidal) timing belts in 3 in width from any manufacturer. The pitch is standardized, so belt and pulley brands can be mixed.

Does the 120HR300 replace the Regal Rexnord 120HR300?

Yes. Published interchange data crosses the 120HR300 directly to the Regal Rexnord 120HR300, as well as Powerdrive 120HR300. Verify dimensions and bore before ordering.

Does the 120HR300 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 120HR300?

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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