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Unit of Measure

Specifications

Gear Type

 N/A Racks

Construction

 N/A Helical Gears

Module

 N/A 5

No. of teeth

 N/A 18

Profile Shift Coefficient

 N/A +0.451

Shape

 N/A S1

Bending Strength

 N/A 978 N·m99.7 kgf·m

Surface Durability

 N/A 171 N·m17.4 kgf·m

Backlash

 N/A 0.0071-0.015 in0.18-0.38 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 3.91 kg8.620 lb

Dimensions

Bore (A)

 N/A 0.984 in25 mm

Hub Diameter (B)

 N/A 3.346 in85 mm

Pitch Diameter (C)

 N/A 3.759 in95.49 mm

Outer Diameter (D)

 N/A 4.331 in110 mm

Face Width (E)

 N/A 1.969 in50 mm

Hub Width (F)

 N/A 0.984 in25 mm

Total Length (G)

 N/A 75 mm2.953 in

Distance Travled In One Turn

 N/A 11.811 in300 mm