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A popular type of internal gear; low cost and suitable f or many appl i cations.
Unit of Measure

Specifications

Gear Type

N/A Internal Gears

Construction

N/A Internal Ring Gears

Module

N/A 2

No. of teeth

N/A 80

Shape

N/A T1

Bending Strength

N/A 311 N·m31.7 kgf·m

Surface Durability

N/A 57 N·m5.81 kgf·m

Backlash

N/A 0.0063-0.013 in0.16-0.33 mm

Precision Grade

N/A JIS grade N8 (JIS B1702-1:1998)

Gear Teeth Type

N/A Standard Full Depth

Pressure Angle

N/A 20 º

Material

N/A S45C (AISI 1045) Carbon Steel

Tooth Hardness

N/A (less than 194HB)

Surface Treatment

N/A Black oxide coating

Weight

N/A 2.28 kg5.026 lb

Dimensions

Internal Diameter (A)

N/A 6.142 in156 mm

Pitch Diameter (C)

N/A 6.299 in160 mm

Outer Diameter (D)

N/A 8.268 in210 mm

Face Width (E)

N/A 0.787 in20 mm