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Product · Rotary motion

V-Belt Pulleys

Custom-bore V-belt pulleys (sheaves) in all standard groove profiles — SPZ, SPA, SPB, SPC.

We machine V-belt pulleys (sheaves) from solid bar — your bore, your keyway, your groove count, your finish. Narrow SPZ / SPA / SPB / SPC sections ship to drawing, plain-bore or taper-bushed; non-standard groove geometry is quoted from your belt supplier’s spec.

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Wolfer V-belt pulley · SPZ, SPA, SPB, SPC profiles · DIN 2211 · made in Foshan China

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Product Showcase

Click any section to open its datasheet (PDF).

Wolfer SPZ taper-bushed V-belt pulley
SPZ Taper-Bushed V-Belt Pulleys Datasheet PDF →

Smallest narrow-wedge section (SPZ), taper-bushing (Taper-Lock) mounted, keyless quick-fit, high power per width. Suited to compact, low-to-medium-power high-speed drives.
Wolfer SPA Taper-Bushed V-Belt Pulleys · narrow-wedge V-belt · taper-bush · Foshan China
SPA Taper-Bushed V-Belt Pulleys Datasheet PDF →

SPA narrow-wedge pulley, taper-bushing mounted; power and size between SPZ and SPB. Suited to fans, pumps and compressors — general power transmission.
Wolfer SPB Taper-Bushed V-Belt Pulleys · narrow-wedge V-belt · taper-bush · Foshan China
SPB Taper-Bushed V-Belt Pulleys Datasheet PDF →

SPB narrow-wedge pulley, taper-bushing mounted; higher capacity, multi-groove capable. Suited to medium-to-high-power fans, pumps and industrial drives.
Wolfer SPC taper-bushed V-belt pulley
SPC Taper-Bushed V-Belt Pulleys Datasheet PDF →

SPC narrow-wedge pulley — largest section, highest capacity, multi-groove for high power. Suited to high-power, heavy-duty drives.

Also:V-groove dimensions (PDF) · power rating tables (PDF)

What we make

V-Belt Pulleys we cut from drawings.

Narrow SPZ / SPA / SPB / SPC

Modern wedge sections — more power per width

Taper-Bushed Pulleys

Taper-Lock / QD bores — mount without a press

Multi-groove sheaves

Two to eight grooves for higher-power drives

Idler pulleys

Smooth or crowned face, with bearing bores

V-belt pulleys drive the fans, pumps, compressors, and conveyors that keep plants running. Groove geometry decides belt life: a wrong groove angle or a rough flank can burn through a belt set in months, and an out-of-round sheave shakes the whole drive.

We machine every sheave from solid bar (no castings), so bore-to-groove concentricity is held to ≤ 0.03 mm and groove angles are gauged to DIN 2211 / ISO 4183. Sheaves ship plain-bore with keyway, or bored for Taper-Lock / QD bushings.

For drives that need balancing — high-speed fans, large-diameter sheaves — we balance on request and ship the report. Want it ready to mount? We supply the sheave with its matching taper bushing as a set.

Standards

Built to international tolerance specs.

  • ISO 4183 (groove dimensions)
  • DIN 2211 (narrow-wedge sheaves)

Inspection

Every part measured before it ships.

  • CMM — bore concentricity, groove runout
  • Groove-angle and pitch-diameter gauges
  • Surface roughness tester
  • Bore go / no-go gauges

Applications

Where these parts go to work.

01 / 04

Industrial Automation

Conveyor and packaging-line belt drives

02 / 04

HVAC & Fans

Blower and air-handler drives

03 / 04

Pumps & Compressors

Motor-to-pump belt drives with frequent starts

04 / 04

General Machinery

Mixer, crusher, woodworking and textile drives

FAQ

Common questions from engineers buying this product.

Can you copy an obsolete OEM pulley?

Yes — send the worn part. We scan it on the CMM, identify the groove profile, and build a CAD pack. You get a first article in ~10 working days.

What is the minimum order quantity?

One. We routinely make single-unit replacement sheaves for OEMs whose original supplier has discontinued the part.

Related products

Often quoted together.

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Couplings

Rigid and flexible shaft couplings — including jaw couplings, beam (helical-slit) couplings, diaphragm couplings, disc couplings, bellows couplings, and Oldham couplings — all built to drawing.

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Ready to start your V-belt pulleys project?

24-hour quote · engineering review within one business day · ≤ 30 days to ship after approval.

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