31J30 Roller Bearing Unit

Comprehensive specifications and application details for: 31J30 Roller Bearing Unit.

Summary

Explore detailed summary information for bearing: 31J30. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: 31J30
Federal Supply Classification: 3130 Mounted Bearings
(NSN) National Stock Number: 3130-00-618-6737
Item Name Code: 30558
Federal Item Identification Guide: A093A0
Assigment Date: 01/01/1963

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

fixed block type, 1.9980 inches minimum and 2.0000 inches maximum bore diameter, 5.3750 inches nominal bolt circle diameter, 3.1250 inches nominal assembly overall length, self-aligning alignment type

Datasheet

Below are the comprehensive technical specifications for bearing: 3130-00-618-6737 . Find dimensions, materials, tolerances, performance characteristics, etc.

Alignment Type: self-aligning
Assembly Overall Length: 3.1250 inches nominal
Block Type: fixed
Bolt Circle Diameter: 5.3750 inches nominal
Bore Diameter: 1.9980 inches minimum and 2.0000 inches maximum
Collar Location: one end
Features Provided: ground rolling element groove
Housing Diameter: 6.3750 inches nominal
Housing Length: 2.4375 inches nominal
Internal Fit-Up Designation: standard
Load Capability Type: radial
Lubrication Material: grease
Lubrication Fitting Angle From Horizontal Centerline: 90.0 degrees nominal
Lubrication Fitting Type: hydraulic
Material: iron cast housing
Material: steel inner liner
Mounting Hole Diameter: 0.4688 inches nominal
Mounting Hole Type: round, unthreaded
Pilot Diameter: 4.4980 inches minimum and 4.5000 inches maximum
Rolling Element Groove Quantity: 2
Rotating Element Locking Method: direct
Seal Location: both ends
Seal Type: labyrinth
Shaft End Type: open
Style Designator: flange cartridge block

Frequently Asked Questions

Find quick answers to common questions about bearing: 31J30. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3130-00-618-6737?: The FSCG of the NSN 3130-00-618-6737 is 3130

Does the NSN 3130-00-618-6737 have a Schedule B code assigned?: Yes, the Schedule B code is 8482997090

Does NSN 3130-00-618-6737 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 3130-00-618-6737 contain precious materials?: Item does not contain precious metal.

Does NSN 3130-00-618-6737 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.