Description
NSK Cylindrical Roller Bearings, Single-Row NU-Type, NU213W ,D=65
Bearing Numbers |
Boundary Dimensions (mm) |
Basic Load Ratings (kN) |
Limiting Speeds (min-1) |
Mass (kg) approx. |
d |
D |
B |
r min. |
r1 min. |
Fw
|
Ew
|
Cr
|
C0r
|
Thermal Reference |
Mechanical |
Grease |
Oil |
NU213W |
65 |
120 |
23 |
1.5 |
1.5 |
78.5 |
|
108 |
119 |
6000 |
7100 |
4800 |
5600 |
1.05 |
DESIGN, TYPES, AND FEATURES
Cylindrical roller bearings are classified into the following types depending on whether or not they have ribs on their rings:
Types NU, N, NNU, and NN are suitable as free-end bearings. Types NJ and NF can sustain limited axial loads in one direction. Types NH and NUP can be used as fixed-end bearings.
The NH type consists of NJ-type cylindrical roller bearings and HJ-type L-shaped thrust collars
The inner ring loose rib of the NUP type should be mounted so that the marked side is on the outside.
If a cage is nonstandard for a given bearing number the number of rollers may vary; in such a case, the load rating will differ from that listed in the bearing tables.
Many NN double-row bearings have tapered bores, and they are primarily used in the main spindles of machine tools. Cages are made of either molded polyphenylenesulfide (PPS) or machined brass.
□Formulation of Bearing Designations
Single-Row Cylindrical Roller Bearing
①Bearing type |
NU : Single-row cylindrical roller bearings (Outer ring with both ribs + Inner ring without rib) Please refer to page C124 for detailed information. |
②Dimension Series |
10 : 10 Series, 2: 02 Series, 22 : 22 Series, 3 : 03 Series, 23 : 23 Series, 4 : 04 Series, |
③Bore number |
Less than 03, Bearing bore 01 : 12mm, 02 : 15mm, 03 : 17mm Over 04, Bearing bore Bore number X 5 (mm) |
④Internal design |
E : High load capacity |
⑤Cage |
W : Pressed-steel Cage, M : Machined Brass Cage, No designation : Machined-brass cage (in Series 10) T : Polyamide 66 resin cage, T7 : L-PPS resin cage |
⑥Internal clearance |
For All Radial Brgs. Omitted : CN clearance, C3 : Clearance greater than CN, C4 : Clearance greater than C3, CG : Special Clearance For Non-Interchangeable Cylindrical Roller Bearings CC : Normal Clearance, CC3 : Clearance greater than CC, CC4 : Clearance greater than CC3, CCG : Special Clearance |
⑦Tolerance class |
Omitted : ISO Normal,P6 : ISO Class 6, P5 : ISO Class 5,P4 : ISO Class 4 |
⑧NSKHPSTM |
& : NSKHPSTM Designation Tolerance Class : ISO Normal |