Model: 4M278

Needle Bearing Cam Follower

Special Features:

Internal hex wrenching flats, 0.250 in

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.5000 inches
Overall Length
1.6250 inches
Overall Outside Diameter
Between 1.1240 inches and 1.1250 inches
Stud Diameter
Between 0.4375 inches and 0.4385 inches
Outer Ring Width
Between 0.6200 inches and 0.6250 inches
Stud Length
1.0000 inches
Seal Quantity
2
Bearing Seal Type
Contact
Alignment Type
Rigid
Cam End Diameter
0.6250 inches
Features Provided
Lubrication hole and lubrication groove
Thready Qty Per Inch (tpi)
20
Thread Size
0.438 inches
Material
Rubber polyester urethane class au seal
Material
Steel end plate
Material
Steel outer ring
Material
Steel roller
Material
Steel stud
Material Specification
Hytrel, fscm 60380 mfr ref single material response seal
Surface Treatment
Chromium outer ring outside diameter
Surface Treatment
Chromium outer ring sides
Surface Treatment
Cadmium exposed surfaces of stud and washer as mounted
Style Designator
Cam follower, adjustable
Thread Series Designator
Unf
NSN
3110-01-220-0265
Part Number
4M278
Description
Cam Follower,needle Bearing
CAGE
76301

An assembly consisting of a roller and stud used to effect a rolling contact with a cam, and convert the reciprocating or oscillating motion to linear motion.

Part 4M278 NSN 3110-01-220-0265

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00040
FIIG:
A044A0
Concept No.:
App. Key:
A
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
51
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114820
UFC:
58860
LTL:
77.5
LCL:
--
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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