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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

No. of Teeth

N/A 20

Shape

N/A S1T

Set Screw Size

N/A M4

Bending Strength

N/A 5.75 N·m0.586 kgf·m

Surface Durability

N/A 0.33 N·m0.0337 kgf·m

Backlash

N/A 0.0031-0.0071 in0.08-0.18 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 0.037 kg0.082 lb

Dimensions

Bore Diameter (A)

N/A 0.197 in5 mm

Hub Diameter (B)

N/A 0.630 in16 mm

Pitch Diameter (C)

N/A 0.787 in20 mm

Outer Diameter (D)

N/A 0.866 in22 mm

Face Width (E)

N/A 0.394 in10 mm

Hub Width (F)

N/A 0.394 in10 mm

Total Length (G)

N/A 0.787 in20 mm

Set Screw Offset (J)

N/A 0.197 in5 mm