Worm Shaft

Model / MPN: 905J913-5 | NSN: 3040-00-684-2149

A drive shaft having helical threa (s) on a portion of its outer surface, machined bearing surface(s) and facilities for driving (other than a hub) on one or both ends of shaft. Designed to mate with a cam, gear sector, worm wheel, etc. Includes items with bearings. Excludes items having more than one worm complement of helical threads, items with a separate complement of gear teeth, and gear, worm.

Product Details

NATO Stock Number

3040-00-684-2149

Sold in multiples of

DEMIL

End Similarity

Not identical

Thread Length

0.750 inches either end, third portion

Thread Length

2.313 inches either end, seventh portion

Thread Length

1.313 inches either end, tenth portion

Overall Length

29.875 inches

Screw Thread Series Designator

Unef-2a either end, seventh portion

Screw Thread Series Designator

Unef-2a either end, third portion

Screw Thread Series Designator

Unf-2a either end, tenth portion

Shaft Thread Direction

Right-hand either end, seventh portion

Shaft Thread Direction

Right-hand either end, tenth portion

Shaft Thread Direction

Right-hand either end, third portion

Teeth Hardness Rating

Between 56.0 rockwell c and 62.0 rockwell c

Worm Thread Quantity

Worm Thread Lead

2.500 inches

Worm Thread Direction

Right-hand

Worm Pressure Angle In Deg

14.500

Worm Helix Angle

11 degrees 2 min

Worm Outside Diameter

4.881 inches

Worm Pitch Diameter

4.085 inches

Shaft Hardness Rating

C scale 24 min

Worm Thread Section Length

8.000 inches

Worm Body Length

8.000 inches

Worm Body Tapered Bearing Surface End

Not provided

Shaft Location

Both ends of worm

Straight Unthreaded Length

0.250 inches either end, fourth portion

Straight Unthreaded Length

0.844 inches either end, eighth portion

Straight Unthreaded Length

1.500 inches either end, sixth portion

Straight Unthreaded Length

2.3125 inches either end, ninth portion

Straight Unthreaded Length

2.5625 inches either end, second portion

Straight Unthreaded Length

3.875 inches either end, first portion

Straight Unthreaded Length

7.8125 inches either end, fifth portion