Chain Wheels
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Gear manufacturing

Chain Wheels

Worm gears and worm wheels as shown above are regularly in for repair.
The new replacements are shown in the foreground.

Gear manufacturing

 
 

The company manufactures custom made gears to customer designs and/or samples in a number of different materials.

All the recognised types of gears are continually in production, from 2.6m in diameter down to 6mm diameter. Click on the links below for further information.

Internal and External Spur Gears
Single Helical Gears (a.k.a. Spiral or Skew Gears)
Double Helical Gears (a.k.a. Herringbone Gears)
Straight cut Bevel Gears
Spiral Bevel Gears
Worm Wheels (a.k.a. Worm Gears)
Worms
Internal and External Screw threads

Rack Gears
Internal and External Serrations
Internal and External Involute Splines
Internal and External Straight Sided Splines
Chain Wheels (also known as Sprockets)
Ratchets

The company is also fully equipped for tooth profile grinding and worm thread grinding, as well as possessing a comprehensive modern gear testing facility.

Clutch and power belt pulleys are also manufactured along with the fitting of taper lock bushes.

   
  Other manufacturing  
 

Ancillary Operations
• Broaching
• Slotting
• Screw cutting (Acme, square and ‘V’)
• Manual Turning
• CNC Turning
• Manual Milling
• CNC Milling
• Grinding
• Drilling
• Laping
• Tooth Rounding
• Keywaying

dotted line Gear manufacturing  
   
 

Hewitt & Topham Ltd. Has supplied gears to an endless list of customers covering such diverse industries as:
• NUCLEAR INDUSTRY
• MILITARY AIRCRAFT
• CIVIL AIRCRAFT
• TEXTILE MACHINES
• MACHINE TOOLS
• MARINE
• PRINTING
• ONSHORE AND OFFSHORE OIL
• MINING
• QUARRYING
• CANNING/FOOD
• SPECIALIST AUTOMOTIVE

 

 

 
         
   
 

Hewitt & Topham Limited, Dyneley Road, Greenbank Business Park, Blackburn BB1 3AB United Kingdom
Tel: +44 (0) 1254 679222  Fax : +44 (0) 1254 680534  Email: sales@hewitt-topham.co.uk

       
   

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