圓筒滾珠軸承NU系列內徑100~120mm
基本型號
主要寸法(mm)
基本定格荷重(kgf)
極限速率(rpm)
NU形
NJ形N形NF形
d
D
B
r
r1
dr
Dr
C
Co
脂潤滑
油潤滑
NU1020
- - -
100
150
24
2.5
2
113
-
8600
7900
4300
5000
NU 220
NJ N FF
180
34
3.5
3.5
120
160
17000
14000
3600
4200
NU 220EWS
NJ - -
180
34
3.5
3.5
119
-
23100
19900
2800
3400
NU2220
NJ - -
180
46
3.5
3.5
120
-
23900
21800
3200
3800
NU2220EWS
NJ - -
180
46
3.5
3.5
119
-
31000
28900
2800
3400
NU 320
NJ N NF
215
47
4
4
129.5
185.5
29300
23900
2800
3400
NU 320EWS
NJ - -
215
47
4
4
127.5
-
35000
28400
2200
2800
NU2320
NJ - -
215
73
4
4
129.5
-
42500
39000
2400
3100
NU2320EWS
NJ - -
215
73
4
4
127.5
-
53000
48000
2200
2800
NU 420
NJ N NF
250
58
5
5
139
211
41500
33500
2500
3000
NU1021
- - -
105
160
26
3
2
119.5
-
10100
9350
4000
4800
NU 221
NJ N NF
190
36
3.5
3.5
126.8
168.8
18600
15600
3400
4000
NU 321
NJ N NF
225
49
4
4
135
195
31500
25600
2600
3200
NU 421
NJ N NF
260
60
5
5
144.5
220.5
46000
37500
2400
2900
NU1022
- - -
110
170
28
3
2
125
-
12200
11000
3800
4500
NU 222
NJ N NF
200
38
3.5
3.5
132.5
178.5
22300
18800
3200
3800
NU 222EWS
NJ - -
200
38
3.5
3.5
132.5
-
27100
23700
2500
3000
NU2222
NJ - -
200
53
3.5
3.5
132.5
-
31000
28600
2800
3400
NU2222EWS
NJ - -
200
53
3.5
3.5
132.5
-
35500
33500
2500
3000
NU 322
NJ N NF
240
50
4
4
143
207
35000
28700
2600
3000
NU 322EWS
NJ - -
240
50
4
4
143
-
42000
35000
2000
2400
NU2322
NJ - -
240
80
4
4
143
-
53000
48500
2200
2800
NU2322EWS
NJ - -
240
80
4
4
143
-
62500
58500
2000
2400
NU 422
NJ N NF
280
65
5
5
155
235
51000
41500
2200
2700
NU1024
- - -
120
180
28
3
2
135
-
12800
12000
3400
4200
NU 224
NJ N NF
215
40
3.5
3.5
143.5
191.5
24100
20600
3000
3400
NU 224EWS
NJ - -
215
40
3.5
3.5
143.5
-
31000
27400
2300
2800
NU2224
NJ - -
215
58
3.5
3.5
143.5
-
34000
32000
2600
3200
NU2224EWS
NJ - -
215
58
3.5
3.5
143.5
-
42000
40000
2300
2800
NU 324
NJ N NF
260
55
4
4
154
226
44000
36500
2200
2800
NU 324EWS
NJ - -
260
55
4
4
154
-
49000
40500
1900
2200
NU2324
NJ - -
260
86
4
4
154
-
65500
61000
2000
2600
NU2324EWS
NJ - -
260
86
4
4
154
-
73500
68500
1900
2200
NU 424
NJ N NF
310
72
6
6
170
260
62500
52000
2000
2400