NTN 4T-A4050/A4138

NTN 4T-A4050/A4138 Tapered roller bearing

Also known as : A4050/A4138

  • Inside Diameter: 12.7 mm
  • Outside Diameter: 34.988 mm
  • Width: 10.988 mm
  • Basic dynamic load rating: 12.3 kN
  • Basic static load rating: 11.6 kN

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NTN 4T-A4050/A4138

NTN 4T-A4050/A4138 details

Part Number 4T-A4050/A4138
Brand NTN
Type Tapered roller bearings
Inch series
Mass 0.053 kg
Boundary dimensions (mm)
Inner dia. (d) 12.7
Outer dia. (D) 34.988
Width (B) 10.988
ras max 1.3
Basic load ratings (kN)
Dynamic (Cr) 12.3
Static (Cor) 11.6
Basic load ratings (kgf)
Dynamic (Cr) 1260
Static (Cor) 1180
Limiting speed (min-1)
Grease 12000
Oil 16000
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.”

Xinyouya have NTN 4T-A4050/A4138 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.

NTN 4T-A4050/A4138 bearing cross reference

68450R/68709R
12.7 mmx 34.988 mmx 10.988 mm
H414245/H414210
12.7 mmx 34.988 mmx 10.988 mm
387/382A
12.7 mmx 34.988 mmx 10.988 mm
HM88630R/HM88610R
12.7 mmx 34.988 mmx 10.988 mm
02473R/02420R
12.7 mmx 34.988 mmx 10.988 mm
23100R/23256R
12.7 mmx 34.988 mmx 10.988 mm
387-384ED
12.7 mmx 34.988 mmx 10.988 mm
389-384DRB
12.7 mmx 34.988 mmx 10.988 mm
EE132083-132126D
12.7 mmx 34.988 mmx 10.988 mm
42362D - 42586
12.7 mmx 34.988 mmx 10.988 mm
L357049-L357019-B
12.7 mmx 34.988 mmx 10.988 mm
EE291175-291750-B
12.7 mmx 34.988 mmx 10.988 mm
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