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Made of aluminum bronze, have excellent wear-resistance. Allows compact design.
Unit of Measure

Specifications

Gear Type

N/A Worm Gears

Construction

N/A Aluminum-Bronze Worm Wheels

Bore Type

N/A Plain

Transverse Module

N/A 2.5

Number of Start

N/A 1

Nominal Lead Angle

N/A 4°46'

Hand of Thread

N/A Right Hand

Reduction Ratio

N/A 40

No. of teeth

N/A 40

Profile Shift Coefficient

N/A 0

Shape

N/A H8

Backlash

N/A 0.0024-0.0063 in0.06-0.16 mm

Precision Grade

N/A KHK W 002 grade 2

Reference Section of Gear

N/A Rotating Plane

Gear Teeth Type

N/A Standard Full Depth

Helix Angle

N/A 4°46'

Pressure Angle

N/A 20 º

Material

N/A CAC702 (old JIS Aℓ BC2)

Weight

N/A 1.42 kg3.131 lb

Dimensions

Bore (A)

N/A 0.472 in12 mm

Hub Diameter (B)

N/A 1.772 in45 mm

Pitch Diameter (C)

N/A 3.937 in100 mm

Throat Diameter (D)

N/A 4.134 in105 mm

Outer Diameter (D')

N/A 4.232 in107.5 mm

Mounting Distance (J)

N/A 2.559 in65 mm

Face Width (E)

N/A 0.787 in20 mm

Hub Width (F)

N/A 0.197 in5 mm

Hub Width Right (F')

N/A 0.591 in15 mm

Total Length (G)

N/A 1.575 in40 mm