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| Bolt type needle roller bearings (NUTR,NA22 Series) |
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Bearing needle roller bearings (NUTR, NA22) outer ring line thick, high temperature nitrogen quenching, high precise separation of the roller by the high rigidity of outer wall to guide the use of linear, contact, wheel can be directly in the raceway on easily rotate, and can withstand the big load. To remove the stress, the outer ring of the support roller cambered surface design, curve roller with single, double sealing ring, sealing ring with a sealing ring, etc. various kinds of specifications. With a storage ring to grease a large space, to provide long-term lithium grease lubrication, and extended lubrication intervals. The material of the sealing ring with a framework for nitrile rubber or ST12, the operating temperature range of -30 DEG C to +100 DEG C or -30 ~ C to +180 ~ C. Curve roller compact can withstand strong heavy load and high performance operation.
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Shaft Diameter
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Bearing Designation
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Mass Approx
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Boudary Dimensions
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Basic Load Rating
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Limiting Speed
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Co
|
Cor
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|
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d
|
D
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B
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C
|
D１
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As yoke type track rollers
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|
mm
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Co
|
Cor
|
Oil
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|
g
|
mm
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N
|
rpm
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15
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NUTR15
|
99
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15
|
35
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19
|
18
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20
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20500
|
24500
|
13900
|
15300
|
6500
|
|
17
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NUTR17
|
147
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17
|
40
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21
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20
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22
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21800
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28500
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16500
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20500
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5500
|
|
15
|
NUTR15 42
|
158
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15
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42
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19
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18
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20
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20500
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24500
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16800
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21800
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6500
|
|
17
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NUTR17 47
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220
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17
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47
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21
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20
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20
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21800
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28500
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19000
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25000
|
5500
|
|
20
|
NUTR20
|
245
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20
|
47
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25
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24
|
27
|
36900
|
48900
|
26000
|
33500
|
4200
|
|
20
|
NUTR20 52
|
321
|
20
|
52
|
25
|
24
|
27
|
36900
|
48900
|
29800
|
39800
|
4200
|
|
25
|
NUTR25
|
281
|
25
|
52
|
25
|
24
|
31
|
40800
|
58500
|
27500
|
35000
|
3400
|
|
25
|
NUTR25 62
|
450
|
25
|
62
|
25
|
24
|
31
|
40800
|
58500
|
32500
|
47800
|
3400
|
|
30
|
NUTR30
|
465
|
30
|
62
|
29
|
28
|
38
|
56800
|
77500
|
39500
|
49500
|
2600
|
|
30
|
NUTR30 72
|
697
|
30
|
72
|
29
|
28
|
38
|
56800
|
77500
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46000
|
62800
|
2600
|
|
35
|
NUTR35
|
630
|
35
|
72
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29
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28
|
44
|
63000
|
91000
|
42500
|
59000
|
2100
|
|
35
|
NUTR35 80
|
836
|
35
|
80
|
29
|
28
|
44
|
63000
|
91000
|
49500
|
70500
|
2100
|
|
40
|
NUTR40
|
816
|
40
|
80
|
32
|
30
|
51
|
87900
|
108000
|
54000
|
73600
|
1600
|
|
45
|
NUTR45
|
883
|
45
|
85
|
32
|
30
|
55
|
93600
|
119000
|
54000
|
77500
|
1400
|
|
40
|
NUTR40 90
|
1129
|
40
|
90
|
32
|
30
|
51
|
87900
|
108000
|
63800
|
93600
|
1600
|
|
50
|
NUTR50
|
950
|
50
|
90
|
32
|
30
|
60
|
98900
|
140000
|
55900
|
79000
|
1300
|
|
45
|
NUTR45 100
|
1396
|
45
|
100
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32
|
30
|
55
|
93600
|
119000
|
70500
|
106000
|
1400
|
|
50
|
NUTR50 110
|
1690
|
50
|
110
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32
|
30
|
60
|
98900
|
140000
|
73600
|
118000
|
1300
|
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