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Unit of Measure

Specifications

Gear Type

N/A Racks

Construction

N/A Helical Gears

Module

N/A 2

No. of teeth

N/A 30

Profile Shift Coefficient

N/A +0.085

Shape

N/A S1

Bending Strength

N/A 136 N·m13.8 kgf·m

Surface Durability

N/A 43.8 N·m4.46 kgf·m

Backlash

N/A 0.0039-0.0087 in0.10-0.22 mm

Precision Grade

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

Reference Section of Gear

N/A Normal Plane

Gear Teeth Type

N/A Standard Full Depth

Direction of Rotation

N/A 19° 31’ 41’’ left helix

Pressure Angle

N/A 20 º

Material

N/A S45C

Tooth Hardness

N/A (less than 194HB)

Surface Treatment

N/A Black oxide coating

Weight

N/A 0.85 kg1.874 lb

Dimensions

Bore (A)

N/A 0.709 in18 mm

Hub Diameter (B)

N/A 2.165 in55 mm

Pitch Diameter (C)

N/A 2.506 in63.66 mm

Outer Diameter (D)

N/A 2.677 in68 mm

Face Width (E)

N/A 0.984 in25 mm

Hub Width (F)

N/A 0.630 in16 mm

Total Length (G)

N/A 41 mm1.614 in

Distance Travled In One Turn

N/A 7.874 in200 mm