Active Member
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[China]
Address: 6/F, Biobase HQ, No. 1, Gangxingyuan Street, Pilot Free Trade Zone (Jinan Area), Shandong Province, China
Contact name:George Pan
Silurian Bearing Factory |
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Brass Holder Cylindrical Roller Bearings Single Row High Speed NUP311ECM C3 55*120*29
Product specification:
N type:
The inner ring has two integral flanges and the outer ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself. The bearings are therefore used as non-locating bearings.
NU type:
The outer ring of bearings of the NU design has two integral flanges and the inner ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself.
NJ type:
The outer ring has two integral flanges and the inner ring one integral flange. The bearings are therefore suitable for the axial location of a shaft in one direction.
NF type:
The outer ring has one integral flange and the inner ring two integral flanges.
NUP type:
The outer ring has two integral flanges and the inner ring one integral flange and one non-integral flange in the form of a loose flange ring. The bearings can be used as locating bearings, i.e. they can provide axial location for a shaft in both directions.
RN type:
No outer ring and the inner ring two integral flanges.
NN type:
NN type bearing without ribs on outer ring,there is a wall in the midel of between both sides of inner ring. It can make shaft relative bearing between the axial displacement generated in both directions.
Calculation data:
| Basic dynamic load rating | C | 156 | kN | |
| Basic static load rating | C0 | 143 | kN | |
| Fatigue load limit | Pu | 18.6 | kN | |
| Reference speed | 6000 | r/min | ||
| Limiting speed | 7000 | r/min | ||
| Calculation factor | kr | 0.15 | ||
| Limiting value | e | 0.2 | ||
| Axial load factor | Y | 0.6 |
Cylinder Roller bearing Related models and specifications
| Item | d | D | w (mm) |
| (mm) | (mm) | ||
| NU202 | 15 | 35 | 11 |
| NU203 | 17 | 40 | 12 |
| NU303 | 17 | 47 | 14 |
| NU1004 | 20 | 42 | 12 |
| NU204E | 20 | 47 | 14 |
| NU2204E | 20 | 47 | 18 |
| NU3O4E | 20 | 52 | 15 |
| NU2304E | 20 | 52 | 21 |
| NU1005 | 25 | 47 | 12 |
| NU205E | 25 | 52 | 15 |
| NU2205E | 25 | 52 | 18 |
| NU305E | 25 | 62 | 17 |
| NU2305E | 25 | 62 | 24 |
| NU1006 | 30 | 55 | 13 |
| NU206E | 30 | 62 | 16 |
| NU2206E | 30 | 62 | 20 |
| NU306E | 30 | 72 | 19 |
Description:
the cylindrical rollers are in linear contact with the raceways.
They have a high radial load capacity and are suitable for high
speeds.In which either the inner or outer rings has two ribs and
the other ring has one, are capable of taking some axial load in
one direction Double-row cylindrical roller bearings have high
radial rigidity and are used primarily for precision machine tools.
Some cylindrical roller bearings have no ribs on either the inner
or outer ring, so the rings can move axially relative to each
other. These can be used as free-end bearings.
Classification:
There are different types designated as NU, NJ, NUP, N, NF (for single-row cylindrical roller bearings), NNU, and NN (for double-row cylindrical roller bearings depending on the design or absence of side ribs). The outer and inner rings of all types are separable .
Feature:
1. With unidirectional and bidirectional two types
2. Use option in the ring, can permit of installation error.
3. High grade ball - high speed rotates the quiet and smooth
4. High Quality Steel - Ultra clean steel to extend bearing life by
up to 80%.
5. The height of the grease technology - N-S-Klubricant technology
can make the grease live longer and improve the performance of the
bearing
6. In order to permit of installation error, whether one-way or
two-way, can choose spherical self-aligning spherical seat cushion
type or take ball seat ring type.
