3B48SD V-Belt Sheave, 3 Grooves, AB Section, 5.15 in OD, SD Bushing


Price:
$ 55.65

Description

3B48SD V-Belt Sheave, 3 Grooves, AB Section, 5.15 in OD, SD Bushing

The 3B48SD is a 3-groove AB section classical section V-belt sheave with a 5.15 in outside diameter, fully machined from cast iron and statically balanced. It mounts with an industry-standard SD QD® style bushing, sold separately, sized to your shaft.

Specifications

Specification Value
Part Number 3B48SD
Belt Section AB
Grooves 3
Outside Diameter 5.15 in
Pitch Diameter (A / B belts) 4.4 in / 4.8 in
Face Width 2.5 in
Bushing SD series, QD® style (not included)
Material Cast Iron, fully machined, statically balanced
Weight 6.6 lb
Country of Origin China

Applications

  • Classical section V-belt drives on fans, pumps, and compressors
  • HVAC and refrigeration equipment
  • General industrial machinery with A, B, or C section belts
  • Replacing worn sheaves on existing drives

Cross Reference

The 3B48SD interchanges with these equivalent part numbers, per published manufacturer interchange data:

Manufacturer Equivalent Part Number
Dodge® D3B48
Martin 3 B 48 SH
Gates® QD3A4.4/B4.8
TB Woods® 483B
Regal Rexnord (Browning®) 3B48SD
Carlisle 3-B-48-SH
Masterdrive 3B48SD
Maurey 3B4.8
Jason Industrial 3B48SD
Optibelt 3/B480SH

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

Does the 3B48SD replace the Dodge D3B48 sheave?

Yes. Published interchange data crosses the 3B48SD directly to the Dodge D3B48, as well as Martin 3 B 48 SH, Gates QD3A4.4/B4.8, TB Woods 483B. Verify groove count, diameter, and bore or bushing before ordering.

What bushing does the 3B48SD use?

A SD series QD style bushing, sold separately. SD is an industry-standard bushing size, so any manufacturer's standard SD bushing fits. Order the bushing bore that matches your shaft diameter.

Why does the 3B48SD list two pitch diameters?

Combination sheaves run more than one belt section, and each section rides at a different depth in the groove. The 3B48SD has a 4.4 in pitch diameter with A or 4L belts and 4.8 in with B or 5L belts.

Does the 3B48SD 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 3B48SD?

Houston warehouse, same-day shipping on stock items.

Call (888) 203-2358

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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