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The SS Spur Gears are made from carbon steel and are NOT hardened. However, the SS-H Spur Gears do have the gear teeth hardened. These Spur Gears are economically priced, general usage gears, with a large selection of modules and numbers of teeth. These Spur Gears are easily customizable and J Series configurations of these Spur Gears are also available.
Unit of Measure

Specifications

Gear Type

N/A Spur Gears

Construction

N/A Hardened Carbon Steel Spur Gears

Bore Type

N/A Finished

Module

N/A 1.5

No. of Teeth

N/A 21

Shape

N/A S1T

Set Screw Size

N/A M5

Bending Strength

N/A 20.8 N·m2.12 kgf·m

Surface Durability

N/A 1.29 N·m0.132 kgf·m

Backlash

N/A 0.0047-0.0102 in0.12-0.26 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 0.12 kg0.265 lb

Dimensions

Bore Diameter (A)

N/A 0.315 in8 mm

Hub Diameter (B)

N/A 0.984 in25 mm

Pitch Diameter (C)

N/A 1.240 in31.5 mm

Outer Diameter (D)

N/A 1.358 in34.5 mm

Face Width (E)

N/A 0.591 in15 mm

Hub Width (F)

N/A 0.394 in10 mm

Total Length (G)

N/A 0.984 in25 mm

Set Screw Offset (J)

N/A 0.197 in5 mm