RA1 Ball Bearing Unit

Comprehensive specifications and application details for: RA1 Ball Bearing Unit.

Summary

Explore detailed summary information for bearing: RA1. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: RA1
Federal Supply Classification: 3130 Mounted Bearings
(NSN) National Stock Number: 3130-00-064-0121
Item Name Code: 30556
Federal Item Identification Guide: A093A0
Assigment Date: 01/01/1963

An assembled unit, composed of a housing incorporating a single or multiple row ball bearing(s), designed to meet various or specific conditions of mounting.

self-aligning alignment type, 1.2656 inches nominal assembly overall length, fixed block type, 3.0000 inches nominal bolt circle diameter, 1.0000 inches nominal bore diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3130-00-064-0121 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: self-aligning
Assembly Overall Length: 1.2656 inches nominal
Block Type: fixed
Bolt Circle Diameter: 3.0000 inches nominal
Bore Diameter: 1.0000 inches nominal
Collar Location: one end
Features Provided: ground rolling element groove
Flange Thickness: 0.0830 inches nominal
Housing Diameter: 3.7500 inches nominal
Housing Length: 0.6875 inches nominal
Internal Fit-Up Designation: standard
Load Capability Type: radial
Lubrication Fitting Type: self lubricated
Material: rubber synthetic seal
Material: steel housing
Mounting Hole Type: square
Mounting Hole Width: 0.3388 inches minimum and 0.3488 inches maximum
Rolling Element Groove Quantity: 1
Rotating Element Locking Method: setscrew locking collar
Seal Location: both ends
Seal Type: contact
Shaft End Type: open
Style Designator: flange block

Replaces

The NSN 3130-00-064-0121 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3130-00-915-8187	No Name Available	09/15/1969
3130-00-998-3309	No Name Available	01/01/1999

Frequently Asked Questions

Find quick answers to common questions about bearing: RA1. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3130-00-064-0121?: The FSCG of the NSN 3130-00-064-0121 is 3130

Does the NSN 3130-00-064-0121 have a Schedule B code assigned?: Yes, the Schedule B code is 8482991050

Does NSN 3130-00-064-0121 require demilitarization?: Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 3130-00-064-0121 contain precious materials?: Item does not contain precious metal.

Does NSN 3130-00-064-0121 contain hazardous materials?: Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.