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NTN 4T-12580/12520 Bearing

NTN 4T-12580/12520 bearings | 20.638x49.225x19.845mm

Also known as : 12580/12520

  • Inside Diameter: 20.638 mm
  • Outside Diameter: 49.225 mm
  • Width: 19.845 mm
  • Basic dynamic load rating: 37.5 kN
  • Basic static load rating: 39 kN

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NTN 4T-12580/12520 Bearing

NTN 4T-12580/12520 Bearing details

Part Number 4T-12580/12520
Brand NTN
Type Tapered roller bearings
Inch series
Mass 0.182 kg
Boundary dimensions (mm)
Inner dia. (d) 20.638
Outer dia. (D) 49.225
Width (B) 19.845
ras max 1.5
Basic load ratings (kN)
Dynamic (Cr) 37.5
Static (Cor) 39
Basic load ratings (kgf)
Dynamic (Cr) 3800
Static (Cor) 3950
Limiting speed (min-1)
Grease 8200
Oil 11000
As for the maximum value for inner and outer ring diameters of bearings whose bearing numbers are marked with "+" (inner ring) and "++" (outer ring), the precision class is an integer for class 4 and class 2 bearings only. Bearings with a # symbol next to the serial number are J-series bearings, and have a different tolerance to other series. For more details, see “Bearing Tolerance” listed in the “NTN ‘Ball and Roller Bearings’ Catalog.”

Nodes have NTN 4T-12580/12520 bearings in stock. Tapered roller bearings (Inch series), are designed so the inner and outer ring raceway and the apex of the tapered rollers intersect at one point on the bearing centerline.

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