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.
Nx120mm QD® Style Bushing, 120mm Bore, Ductile iron (65-45-12)
The Nx120mm is a N series QD style bushing with a 120mm bore, machined from solid ductile iron (65-45-12). It mounts any N-bushed component, including sheaves, sprockets, and timing pulleys, to a 120mm shaft. Every bushing is machined from solid stock, never sintered or powdered metal, which matters in a part that transmits its load through a friction fit.
Specifications
| Specification | Value |
|---|---|
| Part Number | Nx120mm |
| Bushing System | QD® style |
| Series | N |
| Bore | 120mm |
| Torque Capacity | 150000 in-lb |
| Material | Ductile iron (65-45-12) (no sintered or powdered metal) |
| Weight | 80 lb |
| Country of Origin | China |
| Cap Screws | 4 - (7/8-9 x 8) |
| Bolt Circle | 8.5 |
Applications
- Mounting N-bushed V-belt sheaves, sprockets, and timing pulleys to 120mm shafts
- Drive component replacement where the bushing wears or the shaft size changes
- Conveyor, fan, pump, and general industrial drive assemblies
- Stocking standard bushing sizes for plant maintenance inventories
Cross Reference
The Nx120mm interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Dodge® | N X 120MM |
| Gates® | N 120MM |
| TB Woods® | N120MM |
| Optibelt | N120 |
| Maska | NX120MM |
Always verify dimensions and bore size before substituting part numbers across manufacturers.
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Frequently Asked Questions
What does the Nx120mm bushing fit?
It fits any sheave, sprocket, pulley, or coupling machined for a N series QD style bushing, and mounts that component to a 120mm shaft. The N size is standardized across manufacturers, so the component brand does not matter.
Does the Nx120mm replace the Dodge N X 120MM bushing?
Yes. The N series dimensions are an industry standard, and published interchange data crosses the Nx120mm directly to the Dodge N X 120MM, as well as Gates N 120MM, TB Woods N120MM, Optibelt N120. Verify bore size before ordering.
How does a QD style bushing install?
QD style bushings are flanged and split through the flange and barrel. Slide the bushing onto the shaft, seat the component on the taper, and tighten the cap screws through the flange into the component. Torquing the screws compresses the split barrel onto the shaft. Reverse the screws into the jacking holes to remove.
Does the Nx120mm ship from Houston?
Yes. Stock items ship same day from our Houston, Texas warehouse. Call (888) 203-2358 to confirm availability.
QD® is a registered trademark of TB Woods/Regal Rexnord. All third-party part numbers and trademarks referenced, including Dodge®, Gates®, Martin, TB Woods®, Browning®, and others shown in the cross reference table, are the property of their respective owners. References are for compatibility identification only and do not imply affiliation or endorsement.
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