Helical Antibacklash Gear NSN 3020-01-128-4681

Item Description

An item having one fixed gear and one free gear, both having the same complement of helical gear teeth, mounted on a common hub. The free gear is attached to the fixed gear by springs and operates as one gear. Upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. This spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. The gear is used where identical and accurate transmitted motion between gears is required.

NSN: 3020-01-128-4681

Provided with every order

Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

Get a Quote

Get an up to date price on nsn 3020011284681

Related NSN

Features and Characteristics

Attachment Method

Mounting hole

Pitch Diameter

0.4746 inches

Teeth Quantity

Bore Style

W/counterbore both ends

Mounting Hole Type And Quantity

2 plain axially through hub, first end

Outside Diameter

0.523 inches

Teeth Type

Single helix

Tooth Form

Standard

Tooth Direction

Left

Pressure Angle

20.0000 degrees

Helix Angle

9.0000 degrees

Distance Between Body Face And Protruding Hub End

0.015 inches both ends

Face Width

0.405 inches

Bore Diameter

0.220 inches both ends

Counterbore Depth

0.015 inches both ends

Counterbore Diameter

0.220 inches both ends

Hub Style Designator

Plain both ends

Hub Diameter

0.365 inches both ends

Precision Classification

Quality number 6 or quality number 7

Mounting Hole Diameter

0.045 inches axially through hub, first end

Bolt Hole Circle Diameter

0.290 inches axially through hub, first end

Material

Plastic polyhexamethylene adipamide

Material Specification

L-p-410 federal specification single material response

Style Designator

Protruding hubs

FSC

3020 Transmission Chain Sprockets Pulleys Gears

NIIN

011284681

NSN

3020011284681

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

42735P2

Cage Code:

25734

Status:

MSDS:

Part Number:

42735

Cage Code:

25734

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8483409000
NAICS: 333612
SITC: 74840
Description: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 3020-01-128-4681

What are the manufacturers of nsn 3020011284681?

Bosch Security Systems, Inc. (25734)

Does this nsn 3020011284681 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3020011284681
An item having one fixed gear and one free gear, both having the same complement of helical gear teeth, mounted on a common hub. the free gear is attached to the fixed gear by springs and operates as one gear. upon installation with the mating gear, the teeth of the free moving gear are preset to mesh with teeth other than those of the fixed gear. this spring tension between the fixed gear and the free gear eliminates any free motion between the driver and the driven gear. the gear is used where identical and accurate transmitted motion between gears is required.

Does nsn 3020011284681 contain any precious metals?
No precious metal content.

Does nsn 3020011284681 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3020011284681?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

26667

FIIG:

A27300

App. Key:

Cond. Code:

Status:

What do you get when you order from nationalstocknumber.org?

On Time Delivery
Certificate of Conformance
Quality Inspected Parts
Quality Fast Service