Item # NNU4928K, Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NNU On NTN Bearing Corp. 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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The rollers in the NN type bearing are guided by the ribs of the inner ring.

Unit of Measure

Order Now | Technical Specifications | Dimensional Specifications

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Technical Specifications

Type	N/A Cylindrical Roller Bearing
Bore Type	N/A Tapered
Material	N/A Hardened Alloy Steel
Cage Material	N/A High Strength, 2 piece, Machined Brass
Limiting Speed - Oil	N/A 3600 RPM
Limiting Speed - Grease	N/A 3000 RPM
Taper	N/A 1:12
Precision	N/A ISO Class 0
Tolerance	N/A ISO Class 0 (RBEC 1)
Oil Hole	N/A w/o Oil Hole
Radial Internal Clearance	N/A CN
Static Load Rating	N/A 106000 lbf470000 N470.00 kN
Dynamic Load Rating	N/A 51000 lbf227000 N227.00 kN
Enclosure	N/A Open
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NNU - Dimensions
d	N/A 5.5118 in140.000 mm
D	N/A 7.4803 in190.000 mm
B	N/A 1.9685 in50.000 mm
C	N/A 1.9685 in50.000 mm
Fw	N/A 6.1417 in156.000 mm
r	N/A 0.0591 in1.500 mm
da min	N/A 5.8268 in148.000 mm
db min	N/A 5.9843 in152.000 mm
Da max	N/A 7.1654 in182.000 mm
Db min	N/A 7.0866 in180.000 mm
Db max	N/A 7.1654 in182.000 mm
ras max	N/A 0.0591 in1.500 mm