Simbolo della puleggia SPA
SPA V-BELT PULLEYS

Select the pulley from controlled drive data

Compare 1-6 groove SPA models by diameter references, construction type, taper bush and shaft interface.

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TAPER-BUSH INTERFACE

Keep the pulley and shaft connection in the same decision

Record the bush designation, actual shaft, keyway and installation envelope before quotation.

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Richiesta di offerta industriale

Move from an installed drive or drawing to a clear enquiry

Send model or drawing, belt profile, groove count, shaft data, quantity and application conditions.

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PRODUCT RANGE

Choose SPA pulleys by groove count, then by model data

Start with the belt section and active groove count. The six family pages keep model rows, taper-bush references and construction drawings together so buyers can compare the correct configuration without mixing adjacent product families.

1-groove SPA pulley

1-Groove SPA Pulleys

Compare P/O, bush and construction data.

2-groove SPA pulley

2-Groove SPA Pulleys

Compare P/O, bush and construction data.

3-groove SPA pulley

3-Groove SPA Pulleys

Compare P/O, bush and construction data.

4-groove SPA pulley

4-Groove SPA Pulleys

Compare P/O, bush and construction data.

5-groove SPA pulley

5-Groove SPA Pulleys

Compare P/O, bush and construction data.

6-groove SPA pulley

6-Groove SPA Pulleys

Compare P/O, bush and construction data.

Selection starts with measurable drive data

Profile first

Keep the SPA belt family fixed before comparing diameter or appearance.

Groove count

Use the actual working groove count as a primary filter.

Mounting interface

Confirm bush, shaft and keyway rather than guessing the bore.

Drawing control

Use the correct construction view whenever hub position or letter dimensions control fit.

Conveyor application
APPLICATIONS

Use the machine context to ask better RFQ questions

Supported contexts include machine tools, textile machines, conveyors and general motor-to-load transmission. Application images show the field rather than pretending to document a specific customer installation. Duty, access, guard clearance and environment belong in the RFQ without rewriting the published product row.

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Operating principle and taper-bush interface

A V-belt drive transfers torque through belt contact with the pulley grooves. Diameter affects the speed relationship and packaging; groove count defines the multi-belt arrangement; the bush and shaft define the mounting interface. Keep all three decisions connected.

Engineering Guides

Taper-bush pulley interface

Customisation starts from a controlled change

Bore and keyway

Send the mating shaft and controlled fit intent.

Hub and envelope

Provide axial clearance, guard limits and any controlled hub position.

Special requirements

State material, finish, balance or inspection only when the project specifies them.

SPA pulley selection parameters

Four inputs before model comparison

  1. Confirm SPA belt profile.
  2. Count active grooves.
  3. Keep P and O references separate.
  4. Define bush, shaft and keyway.

Manufacturing and inspection context

Groove machining
Dimensional inspection

Prepare the enquiry before sending it

Include the full model or drawing, belt section, groove count, shaft data, quantity and application. Standard catalogue pulleys are normally supplied against production-quantity MOQs, while larger or higher-value items may be accepted against practical order value. New customers may request 1-5 piece evaluation samples at sample pricing. Mixed-model orders can be combined toward a practical order value of USD 1,500. Special materials or processes follow their own production minimums. We focus on industrial and OEM supply rather than 1-2 piece retail replacement orders.

Prepare Your RFQ

Technical reading