About NTN
Careers
Media & Resources
Contact Us
English/Inglés
Spanish/Español
Your Industry
Wind Energy
Construction
Agriculture
Automotive
Heavy Duty Truck
Aerospace
Mining & Aggregate
Metal Manufacturing
Machine Tool
Rail & Transit
Food Processing
Infrastructure
Products
Ball Bearings
Tapered Roller Bearings
Cylindrical Roller Bearings
Spherical Roller Bearings
Needle Roller Bearings
Mounted Units & Pillow Blocks
Installation & Removal Tools
Constant Velocity Joints
Wheel Hubs
Differential Kits
Bearing Search
Part Interchange Search
Distributor Search
Distributors: Mexico
Distributors: Sudamerica
Distributor Search Results
International Distributors
Product Support & Training
Part Interchange Search
Shaft & Housing Fits
Tolerance Tables
Product Analysis & Testing
Training Programs
Frequently Asked Questions
Access CAD Files (WEB2CAD)
Brochures & Literature
Brochures
Spec Sheets
Catalogs
Tech Sheets & Supplements
REVOLUTION
IN MOTION™
Search Catalog
By Keyword
By Competitor Part Number
By Item #
All Categories
Double Row Cylindrical Roller Bearings
All Categories
>
Cylindrical Roller Bearings
>
Double Row Cylindrical Roller Bearings
>
Item # NN3028
Download PDF
Download PDF
Printable Page
Email This Page
Save To Favorites
Please wait…
Item # NN3028, Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN
The rollers in the NN type bearing are guided by the ribs of the inner ring.
larger image
larger image
Unit of Measure:
Imperial
Metric
Both
Order Now
·
Technical Specifications
·
Dimensional Specifications
Order Now
Ordering Options
Contact NTN Customer Relations
Technical Specifications
Type
Cylindrical Roller Bearing
Bore Type
Cylindrical
Material
Hardened Alloy Steel
Cage Material
High Strength, 2 piece, Machined Brass
Limiting Speed - Oil
3300
RPM
Limiting Speed - Grease
2800
RPM
Precision
ISO Class 0
Configuration
Two
Oil Hole
w/o Oil Hole
Radial Internal Clearance
CN
Static Load Rating
116000
lbf
515000
N
515.00
kN
Dynamic Load Rating
67000
lbf
298000
N
298.00
kN
Enclosure
Open
Weight
13.779
lb
6.250
kg
Operating Temperature Range
-40 to 250
ºF
-40 to 120
ºC
Dimensional Specifications
Double Row Cylindrical Roller Bearing w/ Cylindrical Bore - Type NN - Dimensions
larger image
d
5.5118
in
140.000
mm
D
8.2677
in
210.000
mm
B
2.0866
in
53.000
mm
C
2.0866
in
53.000
mm
Ew
7.5591
in
192.000
mm
r
0.0787
in
2.000
mm
da min
5.8661
in
149.000
mm
db min
6.0236
in
153.000
mm
Db min
7.6378
in
194.000
mm
Db max
7.9134
in
201.000
mm
ras max
0.0787
in
2.000
mm
VIEW CAD DRAWING
·
3D
·
2D Sectional View
·
2D Sales Drawing