Steel Worm Gears

  • 0.5 Mod – 2 Mod Steel EN8M (226M44) or equivalent. 3 Mod – 6 Mod Steel EN8 (080M40,080M46) or equivalent.
  • All dimensions in mm
  • Standard tolerances, unless otherwise stated ±0.25 mm
  • 20° pressure angle
  • Bore tolerance H7
  • Single & double start, right hand
 
For bronze wormwheels, see here
 
Worm Gear types

All dimensions subject to change. If a dimension is critical to your application please contact us. 

All dimensions in mm.
Standard tolerances, unless otherwise stated ±0.25 mm.
 
Part No. Code Pitch Module dp de Shaft / Boss Ø D M Bore F L A Type
7704-105 SWB05/1R 0.5 7 8 5.5 4 3 12 0 16 A
7704-106 SWB075/1R 0.75 8.5 10 6 4 4 16 0 20 A
7704-107 SWB10/1R 1 14 16 11 6 6 24 0 30 A
7704-108 SWB15/1R 1.5 25 28 21 10 8 40 0 50 A
7704-109 SWB20/1R 2 32 36 25 10 10 45 0 55 A
7704-110 SWB30/1R 3 38 44 30 12 15 46 3 61 B
7704-111 SWB40/1R 4 50 58 40 15 20 62 4 81 B
7704-112 SWB50/1R 5 62 72 50 18 25 80 5 103 B
7704-113 SWB60/1R 6 80 92 65 20 35 80 20 120 B
7704-114 SWS05/1R 0.5 7 8 5.5 18 - 12 10 40 C
7704-115 SWS075/1R 0.75 8.5 10 6 20 - 16 15 51 C
7704-116 SWS10/1R 1 14 16 10 30 - 24 20 74 C
7704-117 SWS15/1R 1.5 25 28 20 40 - 40 30 110 C
7704-118 SWS20/1R 2 32 36 25 50 - 45 36 131 C
7704-119 SWS30/1R 3 38 44 30 130 - 46 90 266 C
7704-120 SWS40/1R 4 50 58 40 175 - 62 120 357 C
7704-121 SWS50/1R 5 62 72 50 220 - 80 150 450 C
7704-122 SWS60/1R 6 80 92 65 220 - 80 150 450 C
7704-101 BSWB08/1R** 0.8 14 15.6 - - 6 30 - - D
7704-102 BSWB08/2R** 0.8 14 15.6 - - 6 30 - - D
7704-103 BSWB10/1R** 1 16 18 - - 6 32 - - D
7704-104 BSWB10/2R** 1 16 18 - - 6 32 - - D

 **Type BSWB worms MUST be run only with type NBWW wormwheels
These worms are black oxide finished and have a 1 x M4  G/S fitted (5mm from one end)


Please note : All dimensions including bore sizes subject to change. 
If a dimension is critical to your application please contact our sales department for confirmation.

£10.36 (£12.43 incl VAT)
£10.76 (£12.91 incl VAT)
£10.57 (£12.68 incl VAT)
£10.93 (£13.12 incl VAT)