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Products - >
Needle Roller Bearing ->
Combined Radial Thrust Bearing |
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Needle and retainer assembly,
needle bearing and drawn cup
needle roller bearings are all
moving tip bearings . They can
be used as positioning bearings
with combined with stop thrust
rings or under small load at low
speed and being fully
lubricated. Other positioning
bearing always have the problem
of much space occupied.
Combined needle bearings are
single directional positioning
bearings or the positioning
bearings with minimum radically
sectional height. If the
Centripetal needle bearings are
used with thrust ball bearings
or cylindrical roller bearings
in combination , the applicable
range will be greatly expanded.
The combined needle bearings are
mainly used in transmission
engineering and tooling machines
such as the bearings in the main
shaft of a drill press , drill
sleeve , positioning central
shaft, worm , spanner teeth head
and so on and so forth. |
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NKIA |
Centripetal needle
bearings and single
direction angular
contact ball bearings
combination, used for
axial light load |
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NKIB |
Centripetal needle
bearings and double
direction angular
contact ball bearings
combination, used for
axial light load |
NX
NX... Z |
Centripetal needle
bearings and densely
fitted thrust bearings
combination, with fixed
cage, used for middle
axial load |
NKY
NKY... Z |
Centripetal needle
bearings and thrust ball
bearing combination,
with or without fixed
cages ,used for axial
heavy load, DIN4529 |
NKXR
NKXR... Z |
Centripetal needle
bearings and thrust ball
bearing combination,
with or without fixed
cages ,used for axial
very heavy load, DIN4529 |
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Shaft
Diameter |
Bearing Designation |
Boundary Dimensions |
Basic Load Ratings |
Limiting
Speed1)
n1
oil
≈
min-1 |
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d |
F |
D |
B |
rs
min. |
radial |
axial |
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C |
Co |
C |
Co |
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mm |
C
N |
C0
N |
C
N |
C0
N |
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12 |
NKIA 5901 |
12 |
16 |
24 |
16 |
0.3 |
7600 |
8300 |
2160 |
1940 |
23000 |
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15 |
NKIA 5902 |
15 |
20 |
28 |
18 |
0.3 |
10600 |
13600 |
2340 |
2370 |
21000 |
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17 |
NKIA 5903 |
17 |
22 |
30 |
18 |
0.3 |
11000 |
14600 |
2500 |
2750 |
20000 |
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20 |
NKIA 5904 |
20 |
25 |
37 |
23 |
0.3 |
21000 |
25500 |
3950 |
4200 |
17000 |
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