Description
40LP100 Timing Pulley, 4 Teeth, L Pitch
The 40LP100 is a 4-tooth L (0.375 in trapezoidal) timing pulley. It mounts with an industry-standard bushing, sold separately, machined from ductile iron, built for 1 in wide belts. Machined from solid stock, never sintered or powdered metal.
Specifications

Dimension key for this construction type. Values for this part number are in the table below.
| Specification | Value |
|---|---|
| Part Number | 40LP100 |
| Teeth | 4 |
| Pitch | L (0.375 in trapezoidal) |
| For Belt Width | 1 in |
| Pitch Diameter | 4.7746 in |
| Outside Diameter | 4.7446 in |
| Flange Diameter | 5 in |
| Bore | Accepts P1 bushing (not included) |
| Face Width | 1.25 in |
| Overall Length | 2.188 in |
| Construction | Split Taper Hub |
| Flange Material | Steel |
| Material | Ductile Iron (no sintered or powdered metal) |
| Weight | 4.718 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 40LP100 runs L (0.375 in trapezoidal) belts in 1 in width. The pitch is standardized, so belt and pulley brands can be mixed.
Cross Reference
The 40LP100 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Regal Rexnord (Browning®) | 40LP100 |
| Powerdrive | 40LP100 |
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 40LP100 pulley?
L (0.375 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 40LP100 replace the Regal Rexnord 40LP100?
Yes. Published interchange data crosses the 40LP100 directly to the Regal Rexnord 40LP100, as well as Powerdrive 40LP100. Verify dimensions and bore before ordering.
Does the 40LP100 ship from Houston?
Yes. Stock items ship same day from our Houston, Texas warehouse. Call (888) 203-2358 to confirm availability.
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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