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Worldwide distributor of NSN parts and consumables located in the USA.

Duplex Ball Bearing

Model / MPN: SR540PTC3-1-ABEC7 | NSN: 3110-01-030-4939
ITAR Registered seal

Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

Product Details
NATO Stock Number
3110-01-030-4939
Sold in multiples of
1 EA
DEMIL
NO
Overall Width
Between 0.5570 inches and 0.5620 inches
Bore Diameter
Between 0.8748 inches and 0.8750 inches
Overall Outside Diameter
Between 1.3121 inches and 1.3125 inches
Lubrication Material
Oil
Surface Finish
Ground
Retainer Fabrication Method
Machined
Shield Quantity
2
Load Direction
Radial
Internal Clearance
0.0003 inches radial and 0.0008 inches radial
Standard Tolerance Designation
Abec no.7
Bearing Preload Rating
4.0 pounds
Lubrication Material Specification
Mil-l-6085 military specification single material response
Material
Cotton retainer and plastic phenolic retainer
Material
Steel comp 440c ball
Material
Steel comp 440c inner ring
Material
Steel comp 440c outer ring
Material
Stainless steel shield
Material Specification
Mil-p-79, ty fbe military specification single material response retainer
Material Specification
Qq-s-763 federal specification single material response ball
Material Specification
Qq-s-763 federal specification single material response inner ring
Material Specification
Qq-s-763 federal specification single material response outer ring
Style Designator
92b counterbored outer rings, non-separable, back to back mounting
SR540PTC3 Series Parts

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SR540PTC3-1-ABEC7 Cross Reference
  • 3TCRS14-21UDB1704
  • AMVW540KDCRVDBFS171
  • 901815