NTN BEARING CORPORATION OF AMERICA
NTN BEARING CORPORATION OF AMERICA
Head Office
1600 E. Bishop Court, P.O. Box 7604
Mount Prospect, IL 60056-7604, U.S.A.
Phone: 847-298-7500
Fax: 847-699-9744
Toll Free: 800-323-2358
Email: mkt@ntnamerica.com
Website: www.ntnamericas.com
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Tapered Roller Set - Inch Series and J Series
Tapered Roller Set - Inch Series and J Series - Dimensions
Unit of Measure
Items Tapered Roller Bearings
02474/02420
Tapered Roller Set - Inch Series and J Series 		Tapered Roller Bearings
02475/02420
Tapered Roller Set - Inch Series and J Series 		Tapered Roller Bearings
02476/02420
Tapered Roller Set - Inch Series and J Series 		Tapered Roller Bearings
02872/02820
Tapered Roller Set - Inch Series and J Series 		Tapered Roller Bearings
02875/02820
Tapered Roller Set - Inch Series and J Series
Type N/A Tapered Roller Bearing
Bore Type N/A Round
Material N/A Case Carburized Steel
Limiting Speed - Oil N/A
Limiting Speed - Grease N/A
B N/A 1.1250 in28.575 mm N/A 1.2500 in31.750 mm N/A 1.2500 in31.750 mm N/A 1.1250 in28.575 mm N/A 1.2500 in31.750 mm
D N/A 2.6875 in68.263 mm N/A 2.6875 in68.263 mm N/A 2.6875 in68.263 mm N/A 2.8750 in73.025 mm N/A 2.6875 in68.263 mm
Wo N/A 0.6875 in17.463 mm
Wi N/A 0.8750 in22.225 mm
W N/A 0.8750 in22.225 mm
r N/A 0.0600 in1.500 mm N/A 0.0600 in1.500 mm N/A 0.0600 in1.500 mm N/A 0.1300 in3.300 mm N/A 0.0600 in1.500 mm
R N/A 0.03 in0.8 mm N/A 0.14 in3.5 mm N/A 0.03 in0.8 mm N/A 0.03 in0.8 mm N/A 0.14 in3.5 mm
a (Effective Load Center) N/A -0.2000 in-5.200 mm N/A -0.2000 in-5.200 mm N/A -0.2000 in-5.200 mm N/A -0.1500 in-3.900 mm N/A -0.1500 in-3.900 mm
U N/A 1.44 in36.5 mm N/A 1.75 in44.5 mm N/A 1.54 in39.0 mm N/A 1.48 in37.5 mm N/A 1.79 in45.5 mm
V N/A 1.42 in36.0 mm N/A 1.52 in38.5 mm N/A 1.52 in38.5 mm N/A 1.46 in37.0 mm N/A 1.56 in39.5 mm
X N/A 2.48 in63.0 mm N/A 2.48 in63.0 mm N/A 2.48 in63.0 mm N/A 2.68 in68.0 mm N/A 2.48 in63.0 mm
Z N/A 2.32 in59.0 mm N/A 2.32 in59.0 mm N/A 2.32 in59.0 mm N/A 2.44 in62.0 mm N/A 2.32 in59.0 mm
Da min N/A
ras max N/A
r1as max N/A
Style N/A Cone & Cup
Precision Rating N/A Class 4
Cone Number N/A 02474 N/A 02475 N/A 02476 N/A 02872 N/A 02875
Cup Number N/A 02420 N/A 02420 N/A 02420 N/A 02820 N/A 02420
Configuration N/A One
Lubrication N/A w/o Oil Hole
e (Axial Load Factor) N/A 0.42 N/A 0.42 N/A 0.42 N/A 0.45 N/A 0.45
Y2 (Axial Load Factor) N/A 1.44 N/A 1.44 N/A 1.44 N/A 1.32 N/A 1.32
Y0 (Axial Load Factor) N/A
Static Load Rating N/A 15100 lbf67000 N67.00 kN N/A 15100 lbf67000 N67.00 kN N/A 15100 lbf67000 N67.00 kN N/A 15300 lbf68000 N68.00 kN N/A 15300 lbf68000 N68.00 kN
Dynamic Load Rating N/A 12800 lbf57000 N57.00 kN N/A 12800 lbf57000 N57.00 kN N/A 12800 lbf57000 N57.00 kN N/A 12700 lbf56500 N56.50 kN N/A 12700 lbf56500 N56.50 kN
Enclosure N/A Open
Weight N/A
Operating Temperature Range N/A -40 to 250 ºF-40 to 120 ºC