SBB28 Self-Aligning Plain Bearing

Comprehensive specifications and application details for: SBB28 Self-Aligning Plain Bearing.

Summary

Explore detailed summary information for bearing: SBB28. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number: SBB28
Federal Supply Classification: 3120 Unmounted Plain Bearings
(NSN) National Stock Number: 3120-00-085-6450
Item Name Code: 13208
Federal Item Identification Guide: A045A0
Assigment Date: 01/01/1960

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes:bearing, plain, rod end and bearing, plain, spherical.

1.7495 inches minimum and 1.7500 inches maximum bore diameter, 1.5260 inches minimum and 1.5310 inches maximum inner member width, 60.0 rockwell c minimum and 63.0 rockwell c maximum outer race member hardness rating, groove internal surfaces lubrication feature, 57.0 rockwell c minimum and 63.0 rockwell c maximum inner member hardness rating

Datasheet

Below are the comprehensive technical specifications for bearing: 3120-00-085-6450 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter: 1.7495 inches minimum and 1.7500 inches maximum
Hardness Rating: 57.0 rockwell c minimum and 63.0 rockwell c maximum inner member
Hardness Rating: 60.0 rockwell c minimum and 63.0 rockwell c maximum outer race member
Inner Member Width: 1.5260 inches minimum and 1.5310 inches maximum
Lubrication Feature: groove internal surfaces
Material: lubricant lubrication
Material: steel comp 1025 overall
Outer Member Outside Diameter: 2.8119 inches minimum and 2.8125 inches maximum
Outer Member Width: 1.3070 inches minimum and 1.3120 inches maximum
Special Features: outer member fractured in two places with snap ring,dry film molydenum disulfide on entire bearing,gun mounted diametrical clearance 0.0030 in. to 0.0060 in. t.i.r.
Static Radial Load Rating: 305000 pounds
Style Designator: without insert or liner
Surface Treatment: phosphate overall

Replaces

The NSN 3120-00-085-6450 is used in place of the following discontinued or alternate items:

NSN	Name	Date
3120-00-232-0567	No Name Available	01/09/1972
3120-00-232-0568	No Name Available	01/09/1972

Frequently Asked Questions

Find quick answers to common questions about bearing: SBB28. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3120-00-085-6450?: The FSCG of the NSN 3120-00-085-6450 is 3120

Does the NSN 3120-00-085-6450 have a Schedule B code assigned?: Yes, the Schedule B code is 8482300040

Does NSN 3120-00-085-6450 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 3120-00-085-6450 contain precious materials?: Item does not contain precious metal.

Does NSN 3120-00-085-6450 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.