Description
2BK120x1 Light Duty V-Belt Sheave, 2 Grooves, 11.75 in OD, 1 in Bore
The 2BK120x1 is a 2-groove light duty V-belt sheave with a 11.75 in outside diameter, fully machined from cast iron and statically balanced, supplied with a 1 in finished bore. It runs 4L, 5L, A, and B section V-belts.
Specifications
| Specification | Value |
|---|---|
| Part Number | 2BK120x1 |
| Belt Section | BK |
| Grooves | 2 |
| Outside Diameter | 11.75 in |
| Pitch Diameter (A / B belts) | 11 in / 11.4 in |
| Face Width | 1.75 in |
| Bore | 1 in finished bore |
| Keyway / Set Screw | 1 x 5/16-18 UNC |
| Material | Cast Iron, fully machined, statically balanced |
| Weight | 15.13 lb |
| Country of Origin | China |
Applications
- Fractional horsepower motor drives
- Furnace blowers, attic fans, and air handlers
- Power tools, lawn equipment, and light machinery
- Direct replacement for worn FHP sheaves
Cross Reference
The 2BK120x1 interchanges with these equivalent part numbers, per published manufacturer interchange data:
| Manufacturer | Equivalent Part Number |
|---|---|
| Dodge® | 2BK120 X 1 |
| Martin | 2BK120 1 |
| Gates® | 2BK120 1 |
| TB Woods® | 2BK1201 |
| Regal Rexnord (Browning®) | 2BK120x1 |
| Carlisle | 2-BK-120-1 |
| Masterdrive | 2BK120-1 |
| Maurey | 2BK120 X 1 |
| Jason Industrial | 2BK120-1 |
| Optibelt | 2BK120-1 |
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 run on the 2BK120x1?
4L, 5L, A, and B section V-belts. These sections are standardized, so any manufacturer's belts of the correct section and length will run in the grooves.
Does the 2BK120x1 replace the Dodge 2BK120 X 1 sheave?
Yes. Published interchange data crosses the 2BK120x1 directly to the Dodge 2BK120 X 1, as well as Martin 2BK120 1, Gates 2BK120 1, TB Woods 2BK1201. Verify groove count, diameter, and bore or bushing before ordering.
Why does the 2BK120x1 list two pitch diameters?
Combination sheaves run more than one belt section, and each section rides at a different depth in the groove. The 2BK120x1 has a 11 in pitch diameter with A or 4L belts and 11.4 in with B or 5L belts.
Does the 2BK120x1 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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