121055 Ball Bearing Unit

Comprehensive specifications and application details for: 121055 Ball Bearing Unit.

Summary

Explore detailed summary information for bearing: 121055. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 121055
Federal Supply Classification: 3130 Mounted Bearings
(NSN) National Stock Number: 3130-01-139-2163
Item Name Code: 30556
Federal Item Identification Guide: A093A0
Assigment Date: 09/27/1982

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.

3.8906 inches nominal bolt circle diameter, fixed block type, 1.0000 inches nominal bore diameter, self-aligning alignment type, 1.4375 inches nominal assembly overall length

Datasheet

Below are the comprehensive technical specifications for bearing: 3130-01-139-2163 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: self-aligning
Assembly Overall Length: 1.4375 inches nominal
Block Type: fixed
Bolt Circle Diameter: 3.8906 inches nominal
Bore Diameter: 1.0000 inches nominal
Collar Location: one end
Features Provided: ground rolling element groove
Housing Diameter: 2.7500 inches nominal
Housing Length: 1.0312 inches nominal
Internal Fit-Up Designation: standard
Load Capability Type: radial and thrust
Lubrication Fitting Angle From Horizontal Centerline: 45.0 degrees nominal
Lubrication Fitting Type: hydraulic
Overall Outside Diameter: 4.8750 inches nominal
Material: iron cast housing
Material: rubber seal
Material: steel bearing
Mounting Hole Diameter: 0.4531 inches nominal
Mounting Hole Type: round, unthreaded
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

Frequently Asked Questions

Find quick answers to common questions about bearing: 121055. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3130-01-139-2163?: The FSCG of the NSN 3130-01-139-2163 is 3130

Does the NSN 3130-01-139-2163 have a Schedule B code assigned?: Yes, the Schedule B code is 8482991050

Does NSN 3130-01-139-2163 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 3130-01-139-2163 contain precious materials?: Item does not contain precious metal.

Does NSN 3130-01-139-2163 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.