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High-precision duplex worms with superior strength. A range of backlash values can be obtained by moving the worm axially.
Unit of Measure

Specifications

Gear Type

N/A Worm Gears

Construction

N/A Duplex Worm Shafts

Nominal Axial Module

N/A 3.5

Number of Start

N/A 1

Nominal Lead Angle

N/A 3°47'

Hand of Thread

N/A Right Hand

Shape

N/A W6

Precision Grade

N/A KHK W 001 grade 1

Reference Section of Gear

N/A Axial

Gear Teeth Type

N/A Standard Full Depth

Pressure Angle

N/A 17.5 º

Material

N/A SCM440 (AISI 4140) Alloy Steel

Heat Treatment

N/A Thermal Refined, Tooth Surface Induction Hardened

Tooth Hardness

N/A HRC 50-60

Surface Treatment

N/A Black oxide coated except for ground part

Weight

N/A 4.72 kg10.406 lb

Dimensions

Pitch Diameter (N)

N/A 2.087 in53 mm

Outer Diameter (O)

N/A 2.362 in60 mm

Face Width (P)

N/A 2.441 in62 mm

Position of Reference Tooth

N/A 1.457 in37 mm

Max Allowable Shift (Vmax)

N/A 0.472 in12 mm

Total Length (R)

N/A 12.992 in330 mm