• KGM KGW WB Single Worm Gear Reducer, Lower Worm (Sizes 50-500)
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KGM KGW WB Single Worm Gear Reducer, Lower Worm (Sizes 50-500)

KGM KGW WB Single Worm Gear Reducer, Lower Worm (Sizes 50-500)

Single-reduction worm gear reducer with the worm below the worm wheel and a horizontal output shaft.

Key features

  • Lubrication conditions are better than the upper-worm type, so it is preferred for large and double-reduction units
  • Sizes 50 to 500 with ratios 1/10 to 1/60; larger sizes offer an optional cooling fan
  • Solid input and output shafts, foot mounted housing

Specifications

Type Lower worm (input below output), foot mount
Reduction ratios 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60
WB-50 Size: 50 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 1.43 at 1800 rpm | Output torque at 1/60 (kgf·m): 4.35 at 1800 rpm | Weight (kg): 7
WB-60 Size: 60 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 2.32 at 1800 rpm | Output torque at 1/60 (kgf·m): 9.20 at 1800 rpm | Weight (kg): 10
WB-70 Size: 70 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 3.47 at 1800 rpm | Output torque at 1/60 (kgf·m): 13.9 at 1800 rpm | Weight (kg): 15
WB-80 Size: 80 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 4.93 at 1800 rpm | Output torque at 1/60 (kgf·m): 18.9 at 1800 rpm | Weight (kg): 20
WB-100 Size: 100 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 8.73 at 1800 rpm | Output torque at 1/60 (kgf·m): 30.4 at 1800 rpm | Weight (kg): 40
WB-120 Size: 120 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 13.8 at 1800 rpm | Output torque at 1/60 (kgf·m): 48.9 at 1800 rpm | Weight (kg): 65
WB-135 Size: 135 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 19.7 at 1800 rpm | Output torque at 1/60 (kgf·m): 67.0 at 1800 rpm | Weight (kg): 90
WB-155 Size: 155 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 32.9 at 1800 rpm | Output torque at 1/60 (kgf·m): 95.3 at 1800 rpm | Weight (kg): 115
WB-175 Size: 175 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 46.8 at 1800 rpm | Output torque at 1/60 (kgf·m): 132 at 1800 rpm
WB-200 Size: 200 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 52.6 at 1800 rpm | Output torque at 1/60 (kgf·m): 188 at 1800 rpm
WB-225 Size: 225 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 71.2 at 1800 rpm | Output torque at 1/60 (kgf·m): 262 at 1800 rpm
WB-250 Size: 250 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 96.6 at 1800 rpm | Output torque at 1/60 (kgf·m): 350 at 1800 rpm
WB-300 Size: 300 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 137 at 1800 rpm | Output torque at 1/60 (kgf·m): 570 at 1800 rpm
WB-350 Size: 350 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 147 at 1800 rpm | Output torque at 1/60 (kgf·m): 869 at 1800 rpm
WB-400 Size: 400 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 238 at 1200 rpm | Output torque at 1/60 (kgf·m): 1500 at 1200 rpm
WB-450 Size: 450 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 299 at 1200 rpm | Output torque at 1/60 (kgf·m): 1970 at 1200 rpm
WB-500 Size: 500 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 400 at 1200 rpm | Output torque at 1/60 (kgf·m): 2580 at 1200 rpm
Worm Gear ReducersKGM
17 product codes available in this family
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KGM KGW WB Single Worm Gear Reducer, Lower Worm (Sizes 50-500)

Brand KGM·Worm Gear Reducers

Available part numbers (17)

WB-50, WB-60, WB-70, WB-80, WB-100, WB-120, WB-135, WB-155, WB-175, WB-200 + 7 more — see full table ↓

How to order

Send the KGM part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codeSpec
WB-50Size: 50 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 1.43 at 1800 rpm | Output torque at 1/60 (kgf·m): 4.35 at 1800 rpm | Weight (kg): 7
WB-60Size: 60 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 2.32 at 1800 rpm | Output torque at 1/60 (kgf·m): 9.20 at 1800 rpm | Weight (kg): 10
WB-70Size: 70 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 3.47 at 1800 rpm | Output torque at 1/60 (kgf·m): 13.9 at 1800 rpm | Weight (kg): 15
WB-80Size: 80 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 4.93 at 1800 rpm | Output torque at 1/60 (kgf·m): 18.9 at 1800 rpm | Weight (kg): 20
WB-100Size: 100 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 8.73 at 1800 rpm | Output torque at 1/60 (kgf·m): 30.4 at 1800 rpm | Weight (kg): 40
WB-120Size: 120 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 13.8 at 1800 rpm | Output torque at 1/60 (kgf·m): 48.9 at 1800 rpm | Weight (kg): 65
WB-135Size: 135 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 19.7 at 1800 rpm | Output torque at 1/60 (kgf·m): 67.0 at 1800 rpm | Weight (kg): 90
WB-155Size: 155 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 32.9 at 1800 rpm | Output torque at 1/60 (kgf·m): 95.3 at 1800 rpm | Weight (kg): 115
WB-175Size: 175 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 46.8 at 1800 rpm | Output torque at 1/60 (kgf·m): 132 at 1800 rpm
WB-200Size: 200 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 52.6 at 1800 rpm | Output torque at 1/60 (kgf·m): 188 at 1800 rpm
WB-225Size: 225 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 71.2 at 1800 rpm | Output torque at 1/60 (kgf·m): 262 at 1800 rpm
WB-250Size: 250 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 96.6 at 1800 rpm | Output torque at 1/60 (kgf·m): 350 at 1800 rpm
WB-300Size: 300 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 137 at 1800 rpm | Output torque at 1/60 (kgf·m): 570 at 1800 rpm
WB-350Size: 350 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 147 at 1800 rpm | Output torque at 1/60 (kgf·m): 869 at 1800 rpm
WB-400Size: 400 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 238 at 1200 rpm | Output torque at 1/60 (kgf·m): 1500 at 1200 rpm
WB-450Size: 450 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 299 at 1200 rpm | Output torque at 1/60 (kgf·m): 1970 at 1200 rpm
WB-500Size: 500 | Type: Lower worm (input below output), foot mount | Reduction ratios: 1/10, 1/15, 1/20, 1/25, 1/30, 1/40, 1/50, 1/60 | Max rated input (HP): 400 at 1200 rpm | Output torque at 1/60 (kgf·m): 2580 at 1200 rpm

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