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Economical, commonly used worm wheels that have broad utility. Available with a large selection of modules and number of teeth.
Unit of Measure

Specifications

Gear Type

N/A Worm Gears

Construction

N/A Cast Iron Worm Wheels

Bore Type

N/A Plain

Number of Start

N/A 1

Nominal Lead Angle

N/A 3°42'

Hand of Thread

N/A Right Hand

Reduction Ratio

N/A 40

Module

N/A 4

No. of teeth

N/A 40

Profile Shift Coefficient

N/A -0.042

Shape

N/A HB

Bore (A)

N/A 0.787 in20 mm

Hub Diameter (B)

N/A 2.756 in70 mm

Pitch Diameter (C)

N/A 6.312 in160.33 mm

Throat Diameter (D)

N/A 6.614 in168 mm

Outer Diameter (D')

N/A 6.732 in171 mm

Mounting Distance (J)

N/A 4.370 in111 mm

Face Width (E)

N/A 1.378 in35 mm

Hub Width (F)

N/A 0.669 in17 mm

Total Length (G)

N/A 2.047 in52 mm

Web Thickness

N/A 0.433 in11 mm

Web O.D. (I)

N/A 5.354 in136 mm

Backlash

N/A 0.0067-0.0146 in0.17-0.37 mm

Precision Grade

N/A KHK W 002 grade 4

Reference Section of Gear

N/A Normal Plane

Gear Teeth Type

N/A Standard Full Depth

Helix Angle

N/A 3°42'

Pressure Angle

N/A 14.5 º

Material

N/A FC200 Cast Iron

Weight

N/A 3.81 kg8.400 lb