Precision Fine Pitch Gears

Precision Fine Pitch Accurate Gears

Reliance specialises in the production of exeptionally accurate fine pitch gears and geared mechanisms for the aerospace, scientific and medical industries.

The range, which spans accurate data transmission through to highly loaded fin and flap actuation components includes gear pitches between 0.2 and 6 module with a maximum diameter of 400mm and a wide variety of materials including Stainless Steel, Aluminium, Brass and Delrin. Nitride precipitation, heat treatment and passivation are also available.

With over 50 years experience Reliance offers :

  • Exceptionally accurate and repeatable fine pitch gear manufacture
  • Specialist knowledge and inspection facilities including single and dual flank testing
  • Preferred range of standard gears cut to order available on short delivery from online store
  • Anti-backlash gears for zero backlash applications including miniature range
  • Reliance Quality 10 to 14 as standard
  • Range: 0.2 to 6 module
  • Maximum accuracy gears: 3 microns tooth to tooth & 5 microns total composite error
  • Maximum accuracy racks: 5 microns per 300mm length

Gearcutting Capacity

Precision Instrument Gears
Gear Type Range (metric) Range (imperial)
Plain Spur gears 0.2 to 6 module 200 to 4 DP
Single Helical gears 0.2 to 6 module 200 to 4 DP
Anti-backlash gears 0.2 to 6 module 200 to 4 DP
Shaped (internal) gears 0.25 to 5 module 100 to 5 DP
Shaped (external) gears 0.25 to 5 module 100 to 5 DP
Worms 0.2 to 1.5 module 100 to 20 DP
Worm wheels 0.2 to 1.5 module 200 to 20 DP
Straight bevel gears 0.3 to 1 module 80 to 20 DP
Ground Rack 1mm to 3.2mm CP 0.05” to 0.125” CP
Shaped Rack 1mm to 4mm CP 0.05” to 0.160” CP

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