Item # NNU4960K, Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NNU On Bearing Distributors, Inc.

Bearing Distributors, an Applied Company
930 South Stadium Road
Columbia, SC 29201
Phone: (800) 934-2834
Fax: (803) 256-3824
Email: sales@ibearing.com
Website: www.bearingdistributors.com

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The rollers in the NN type bearing are guided by the ribs of the inner ring.

Unit of Measure

Technical Specifications | Dimensional Specifications

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 1500 rpm
Limiting Speed - Grease	N/A 1300 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 630000 lbf2800000 N2800.00 kN
Dynamic Load Rating	N/A 270000 lbf1200000 N1200.00 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 11.811 in300.000 mm
D	N/A 16.5354 in420.000 mm
B	N/A 4.6457 in118 mm
C	N/A 4.6457 in118 mm
Fw	N/A 13.3465 in339.000 mm
r	N/A 0.1181 in3.000 mm
da min	N/A 12.3228 in313.000 mm
db min	N/A 12.7165 in323.000 mm
Da max	N/A 16.0236 in407.000 mm
Db min	N/A 15.5118 in394.000 mm
Db max	N/A 16.0236 in407.000 mm
ras max	N/A 0.0984 in2.5 mm