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Unit of Measure

Specifications

Gear Type

 N/A Racks

Construction

 N/A Helical Gears

Module

 N/A 1.5

No. of teeth

 N/A 20

Profile Shift Coefficient

 N/A +0.390

Shape

 N/A S1

Bending Strength

 N/A 35.6 N·m3.63 kgf·m

Surface Durability

 N/A 5.89 N·m0.6 kgf·m

Backlash

 N/A 0.0031-0.0079 in0.08-0.20 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 0.16 kg0.353 lb

Dimensions

Bore (A)

 N/A 0.394 in10 mm

Hub Diameter (B)

 N/A 0.984 in25 mm

Pitch Diameter (C)

 N/A 1.253 in31.83 mm

Outer Diameter (D)

 N/A 1.417 in36 mm

Face Width (E)

 N/A 0.709 in18 mm

Hub Width (F)

 N/A 0.551 in14 mm

Total Length (G)

 N/A 32 mm1.260 in

Distance Travled In One Turn

 N/A 3.937 in100 mm