Item # 25877/25821, Tapered Roller Set - Inch Series and J Series On NTN Bearing Corp. of America

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Technical Specifications

Type	N/A Tapered Roller Bearing
Bore Type	N/A Round
Material	N/A Case Carburized Steel
Limiting Speed - Grease	N/A 5300 RPM
Style	N/A Cone & Cup
Precision Rating	N/A Class 4
Cone Number	N/A 25877
Cup Number	N/A 25821
Configuration	N/A One
Lubrication	N/A w/o Oil Hole
e (Axial Load Factor)	N/A 0.29
Y2 (Axial Load Factor)	N/A 2.07
Static Load Rating	N/A 19100 lbf85000 N85.00 kN
Dynamic Load Rating	N/A 16000 lbf71000 N71.00 kN
Enclosure	N/A Open
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Tapered Roller Set - Inch Series and J Series - Dimensions
B	N/A 1.3750 in34.925 mm
D	N/A 2.8750 in73.025 mm
Wo	N/A 0.7500 in19.050 mm
Wi	N/A 0.9688 in24.608 mm
W	N/A 0.9375 in23.812 mm
r	N/A 0.0300 in0.800 mm
R	N/A 0.06 in1.5 mm
a (Effective Load Center)	N/A -0.3200 in-8.100 mm
U	N/A 1.69 in43.0 mm
V	N/A 1.59 in40.5 mm
X	N/A 2.68 in68.0 mm
Z	N/A 2.56 in65.0 mm
ras max	N/A 0.0591 in2.000 mm
r1as max	N/A 0.0315 in0.800 mm