Model: MR-56

Needle Roller Bearing

Properties:

Overall Width
Between 1.9950 inches and 2.0000 inches
Bore Diameter
Between 3.5012 inches and 3.5024 inches
Overall Outside Diameter
Between 4.4992 inches and 4.5000 inches
Surface Finish
Ground
Retainer Fabrication Method
Pressed
Alignment Type
Rigid
Standard Tolerance Designation
Afbma standard tolerance for industrial needle bearings
Material
Copper alloy retainer
Material
Steel comp e50100 roller or steel comp e51100 roller or steel comp e52100 roller
Material
Steel comp e51100 outer ring or steel comp e52100 outer ring or steel comp e4340h outer ring or steel comp 4720h outer ring or steel comp 8620 outer ring or steel comp 8720 outer ring
Material Specification
66 federal standard all material responses outer ring
Material Specification
66 federal standard all material responses roller
Style Designator
Non-separable, with roller retainer, hardened and ground
Specification Data
96906-ms51961 government standard
NSN
3110-00-966-4852
Part Number
MR-56
Description
Bearing,roller,needle
CAGE
39317

A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.

Part MR-56 NSN 3110-00-966-4852

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00051
FIIG:
A044A0
Concept No.:
App. Key:
M
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114820
UFC:
58860
LTL:
77.5
LCL:
77.5
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8482400000
  • SITC: 74640
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Needle roller bearings

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