RS PRO Steel 1 Module Worm Gear, 1 Start, 18 mm Diam, 32mm Long, 16 mm Pitch Dia.

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Subtotal (1 unit)*

£21.07

(exc. VAT)

£25.28

(inc. VAT)

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Temporarily out of stock
  • 163 unit(s) shipping from 28 April 2026
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Units
Per unit
1 - 4£21.07
5 - 9£20.64
10 - 24£20.22
25 +£19.80

*price indicative

RS Stock No.:
521-6890
Brand:
RS PRO
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Brand

RS PRO

Module

1

Product Type

Worm Gear

Material

Steel

Pitch Diameter

16mm

Number of Starts

1

Gear Direction

Right Hand

Overall Length

32mm

Overall Diameter

18mm

Pressure Angle

20°

Standards/Approvals

No

RoHS Status: Exempt

COO (Country of Origin):
GB

RS PRO Worm Gear


Do you need high-quality worm gears, then consider the RS PRO 0.8 and 1-pitch module worm gears. The worm gears are metric and used to transfer rotational motion between two perpendicular shafts. Our worm gears are a carbon steel grade with a black oxide finish and consist of a threaded shaft called the worm which meshes with a toothed wheel called the worm wheel or worm gear.

Features and Benefits


  • Metric worms

  • All worms supplied with black oxide finish

  • Supplied with a M4 G/S fitted (5mm from one end)

    • Specification


  • Type D

  • Material: carbon steel grade

  • Single (1R) & Double (2R) Start - Right Hand

  • 20 ° p.a.

  • Bore tolerance H7

  • Pitch Module: 0.8 or 1

    • RS PRO Worm Gear Variants – Available Separately


  • Bronze, Steel, Module 0.8, RS stock no: 521-6812

  • Bronze, Steel, Module 1.0, RS stock no: 521-6907

  • Steel, Module 0.8, RS stock no: 521-8559

  • Steel, Module 1.0, RS stock no: 521-6890

    • Applications


    Metric worm gears, commonly used in machinery and equipment where high reduction ratios are required. The gear system offers high precision and efficiency due to the large contact area between the worm and worm wheel. However, it also generates a significant amount of heat and requires proper lubrication to operate smoothly.

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