详细介绍:
单列角接触球轴承可同时承受径向和一个方向轴向载荷,极限转速高,主要用于精密机床和其他高精度、高转速的部位。该类轴承在承受径向载荷时,轴承内圈会产生轴向分力,因此,单列角接触球轴承通常需要与能承受反方向轴向的轴承配套安装使用。
为了提高机床主轴的刚性和使用寿命,通常采用双联、三联甚至多联组配使用。DRZ精密角接触球轴承的接触角分为15°(代号为C)、25°(代号为AC)、40°(代号为B)三种,以满足不同的需求,其外形尺寸有70、72、73三种系列,当客户有要求时,DRZ可生产其他尺寸系列化的角接触球轴承。在轴承结构上DRZ有标准系列和高速系列以及60°的丝杠轴承。
轴承代号
|
外形尺寸
|
安装尺寸
|
额定载荷
|
极限转速
|
予载荷Fao
|
轴向刚度Ra
|
重量
|
d
|
D
|
B
|
rsmin
|
r1min
|
da
|
Da/Db
|
ra
|
rb
|
Cr
|
Cor
|
脂
|
油
|
A(轻)
|
B(中)
|
C(重)
|
A(轻)
|
B(中)
|
C(重)
|
≈
|
mm
|
min
|
max
|
max
|
max
|
kN
|
r/min
|
N
|
N/μm
|
Kg
|
7204C
|
20
|
47
|
14
|
1.0
|
0.3
|
26.5
|
40.5
|
1.0
|
0.3
|
13.1
|
9.6
|
34000
|
50000
|
70
|
210
|
420
|
27
|
39
|
49
|
0.11
|
7204AC
|
20
|
47
|
14
|
1.0
|
0.3
|
26.5
|
40.5
|
1.0
|
0.3
|
12.6
|
9.2
|
30000
|
45000
|
115
|
340
|
680
|
72
|
100
|
126
|
0.11
|
7205C
|
25
|
52
|
15
|
1.0
|
0.3
|
30.5
|
46.5
|
1.0
|
0.3
|
16.8
|
13.1
|
30000
|
45000
|
90
|
270
|
540
|
32
|
46
|
58
|
0.14
|
7205AC
|
25
|
52
|
15
|
1.0
|
0.3
|
30.5
|
46.5
|
1.0
|
0.3
|
16.1
|
12.5
|
26000
|
40000
|
150
|
450
|
900
|
85
|
119
|
150
|
0.14
|
7206C
|
30
|
62
|
16
|
1.0
|
0.3
|
36.5
|
55.5
|
1.0
|
0.3
|
23.4
|
18.8
|
24000
|
38000
|
120
|
360
|
720
|
38
|
55
|
69
|
0.21
|
7206AC
|
30
|
62
|
16
|
1.0
|
0.3
|
36.5
|
55.5
|
1.0
|
0.3
|
22.3
|
18.0
|
20000
|
34000
|
200
|
600
|
1200
|
101
|
141
|
178
|
0.21
|
7207C
|
35
|
72
|
17
|
1.1
|
0.6
|
44
|
63
|
1.1
|
0.6
|
25.8
|
22.9
|
18000
|
30000
|
135
|
400
|
800
|
44
|
63
|
79
|
0.31
|
7207AC
|
35
|
72
|
17
|
1.1
|
0.6
|
44
|
63
|
1.1
|
0.6
|
24.5
|
21.9
|
17000
|
28000
|
220
|
660
|
1320
|
116
|
162
|
204
|
0.31
|
7208C
|
40
|
80
|
18
|
1.1
|
0.6
|
49
|
71
|
1.1
|
0.6
|
34.1
|
30.9
|
17000
|
28000
|
180
|
540
|
1080
|
50
|
72
|
92
|
0.40
|
7208AC
|
40
|
80
|
18
|
1.1
|
0.6
|
49
|
71
|
1.1
|
0.6
|
32.5
|
29.5
|
15000
|
24000
|
295
|
880
|
1760
|
134
|
187
|
235
|
0.40
|
7209C
|
45
|
85
|
19
|
1.1
|
0.6
|
54
|
76
|
1.1
|
0.6
|
35.5
|
33.8
|
16000
|
26000
|
187
|
560
|
1120
|
53
|
77
|
97
|
0.45
|
7209AC
|
45
|
85
|
19
|
1.1
|
0.6
|
54
|
76
|
1.1
|
0.6
|
33.8
|
32.3
|
14000
|
22000
|
300
|
900
|
1800
|
142
|
199
|
250
|
0.45
|
7210C
|
50
|
90
|
20
|
1.1
|
0.6
|
57.5
|
83
|
1.1
|
0.6
|
43.3
|
40.6
|
15000
|
24000
|
225
|
670
|
1340
|
57
|
82
|
104
|
0.49
|
7210AC
|
50
|
90
|
20
|
1.1
|
0.6
|
57.5
|
83
|
1.1
|
0.6
|
41.3
|
38.7
|
14000
|
22000
|
365
|
1090
|
2180
|
151
|
212
|
267
|
0.49
|
7211C
|
55
|
100
|
21
|
1.5
|
0.6
|
63
|
92
|
1.5
|
0.6
|
53.6
|
51.1
|
14000
|
22000
|
290
|
870
|
1740
|
63
|
91
|
116
|
0.65
|
7211AC
|
55
|
100
|
21
|
1.5
|
0.6
|
63
|
92
|
1.5
|
0.6
|
51.1
|
48.8
|
13000
|
20000
|
460
|
1380
|
2760
|
169
|
236
|
297
|
0.65
|
7212C
|
60
|
110
|
22
|
1.5
|
0.6
|
71.5
|
100.5
|
1.5
|
0.6
|
55.8
|
56.2
|
12000
|
19000
|
305
|
910
|
1820
|
67
|
97
|
123
|
0.86
|
7212AC
|
60
|
110
|
22
|
1.5
|
0.6
|
71.5
|
100.5
|
1.5
|
0.6
|
53.0
|
53.5
|
11000
|
18000
|
480
|
1440
|
2880
|
179
|
251
|
316
|
0.86
|
7213C
|
65
|
120
|
23
|
1.5
|
0.6
|
76.5
|
108.5
|
1.5
|
0.6
|
67.5
|
69.0
|
11000
|
18000
|
355
|
1060
|
2120
|
74
|
107
|
136
|
1.08
|
7213AC
|
65
|
120
|
23
|
1.5
|
0.6
|
76.5
|
108.5
|
1.5
|
0.6
|
64.2
|
65.8
|
9500
|
16000
|
570
|
1710
|
3420
|
198
|
277
|
348
|
1.08
|
7214C
|
70
|
125
|
24
|
1.5
|
0.6
|
81.5
|
113.5
|
1.5
|
0.6
|
70.2
|
74.6
|
10000
|
17000
|
370
|
1110
|
2220
|
78
|
113
|
143
|
1.19
|
7214AC
|
70
|
125
|
24
|
1.5
|
0.6
|
81.5
|
113.5
|
1.5
|
0.6
|
66.6
|
71.1
|
9000
|
15000
|
590
|
1770
|
3540
|
209
|
293
|
368
|
1.19
|
7215C
|
75
|
130
|
25
|
1.5
|
0.6
|
86.5
|
118.5
|
1.5
|
0.6
|
72.7
|
80.2
|
9500
|
16000
|
385
|
1150
|
2300
|
82
|
119
|
151
|
1.29
|
7215AC
|
75
|
130
|
25
|
1.5
|
0.6
|
86.5
|
118.5
|
1.5
|
0.6
|
68.9
|
76.3
|
8500
|
14000
|
615
|
1840
|
3680
|
220
|
309
|
388
|
1.29
|
7216C
|
80
|
140
|
26
|
2.0
|
1.0
|
92.5
|
128
|
2.0
|
1.0
|
86.5
|
96.5
|
9000
|
15000
|
460
|
1380
|
2760
|
90
|
130
|
165
|
1.58
|
7216AC
|
80
|
140
|
26
|
2.0
|
1.0
|
92.5
|
128
|
2.0
|
1.0
|
82.1
|
91.9
|
8000
|
13000
|
750
|
2250
|
4500
|
240
|
338
|
424
|
1.58
|
7217C
|
85
|
150
|
28
|
2.0
|
1.0
|
98.5
|
137
|
2.0
|
1.0
|
97.4
|
107.5
|
8500
|
14000
|
515
|
1540
|
3080
|
93
|
134
|
169
|
1.96
|
7217AC
|
85
|
150
|
28
|
2.0
|
1.0
|
98.5
|
137
|
2.0
|
1.0
|
92.5
|
102.4
|
7500
|
12000
|
825
|
2470
|
4940
|
247
|
347
|
436
|
1.96
|
7218C
|
90
|
160
|
30
|
2.0
|
1.0
|
103
|
147
|
2.0
|
1.0
|
121.9
|
131.3
|
8000
|
13000
|
655
|
1960
|
3920
|
110
|
160
|
202
|
2.44
|
7218AC
|
90
|
160
|
30
|
2.0
|
1.0
|
103
|
147
|
2.0
|
1.0
|
115.8
|
124.6
|
7000
|
11000
|
1050
|
3150
|
6300
|
276
|
394
|
496
|
4.44
|
7219C
|
95
|
170
|
32
|
2.1
|
1.1
|
112
|
153
|
2.1
|
1.1
|
128.9
|
145.1
|
7500
|
11000
|
1050
|
3150
|
6300
|
276
|
394
|
496
|
2.93
|
7219AC
|
95
|
170
|
32
|
2.1
|
1.1
|
112
|
153
|
2.1
|
1.1
|
122.5
|
138.3
|
6700
|
10000
|
1050
|
3150
|
6300
|
286
|
410
|
517
|
2.93
|
7220C
|
100
|
180
|
34
|
2.1
|
1.1
|
116
|
164
|
2.1
|
1.1
|
146.2
|
165.9
|
7000
|
11000
|
770
|
2310
|
4620
|
114
|
165
|
208
|
3.51
|
7220AC
|
100
|
180
|
34
|
2.1
|
1.1
|
116
|
164
|
2.1
|
1.1
|
138.9
|
158.2
|
6700
|
10000
|
1240
|
3720
|
7440
|
305
|
427
|
537
|
3.51
|
7221C
|
105
|
190
|
36
|
2.1
|
1.1
|
122
|
173
|
2.1
|
1.1
|
164.3
|
188.2
|
7000
|
11000
|
890
|
2670
|
5340
|
121
|
175
|
221
|
4.17
|
7221AC
|
105
|
190
|
36
|
2.1
|
1.1
|
122
|
173
|
2.1
|
1.1
|
156.3
|
179.5
|
6300
|
9500
|
1430
|
4290
|
8580
|
323
|
454
|
570
|
4.17
|
7222C
|
110
|
200
|
38
|
2.1
|
1.1
|
130
|
181
|
2.1
|
1.1
|
170.4
|
202.5
|
6700
|
10000
|
920
|
2760
|
5520
|
127
|
184
|
233
|
4.95
|
7222AC
|
110
|
200
|
38
|
2.1
|
1.1
|
130
|
181
|
2.1
|
1.1
|
161.8
|
193.0
|
6000
|
9000
|
1480
|
4440
|
8880
|
341
|
478
|
601
|
4.95
|
7224C
|
120
|
215
|
40
|
2.1
|
1.1
|
143
|
192
|
2.1
|
1.1
|
175.4
|
218.4
|
6000
|
9000
|
950
|
2850
|
5700
|
133
|
193
|
245
|
6.01
|
7224AC
|
120
|
215
|
40
|
2.1
|
1.1
|
143
|
192
|
2.1
|
1.1
|
166.3
|
207.9
|
5300
|
8000
|
1500
|
4500
|
9000
|
358
|
502
|
631
|
6.01
|
7226C
|
130
|
230
|
40
|
3.0
|
1.1
|
151.5
|
209
|
3.0
|
1.1
|
200.6
|
258.3
|
5600
|
8500
|
1050
|
3100
|
6200
|
139
|
202
|
255
|
6.41
|
7226AC
|
130
|
230
|
40
|
3.0
|
1.1
|
151.5
|
209
|
3.0
|
1.1
|
190.4
|
246.2
|
5000
|
7500
|
1600
|
4800
|
9600
|
373
|
525
|
659
|
6.41
|
7228C
|
140
|
250
|
42
|
3.0
|
1.1
|
165
|
225.5
|
3.0
|
1.1
|
223.6
|
306.6
|
5000
|
7500
|
1200
|
3600
|
7200
|
152
|
221
|
279
|
8.17
|
7228AC
|
140
|
250
|
42
|
3.0
|
1.1
|
165
|
225.5
|
3.0
|
1.1
|
212.3
|
292.2
|
4500
|
6700
|
1900
|
5700
|
11400
|
410
|
575
|
723
|
8.17
|
7230C
|
150
|
270
|
45
|
3.0
|
1.1
|
178.5
|
242
|
3.0
|
1.1
|
240.9
|
341.5
|
4500
|
6700
|
1280
|
3800
|
7600
|
158
|
229
|
290
|
10.38
|
7230AC
|
150
|
270
|
45
|
3.0
|
1.1
|
178.5
|
242
|
3.0
|
1.1
|
228.7
|
325.5
|
4000
|
6000
|
2050
|
6100
|
12200
|
426
|
599
|
753
|
10.38
|
7232C
|
160
|
290
|
48
|
3.0
|
1.1
|
193.5
|
257
|
3.0
|
1.1
|
248.6
|
365.8
|
4300
|
6300
|
1330
|
4000
|
8000
|
165
|
240
|
303
|
13.10
|
7232AC
|
160
|
290
|
48
|
3.0
|
1.1
|
193.5
|
257
|
3.0
|
1.1
|
236.1
|
348.6
|
3800
|
5600
|
2100
|
6300
|
12600
|
446
|
627
|
788
|
13.10
|
7234C
|
170
|
310
|
52
|
4.0
|
1.5
|
202
|
278.5
|
4.0
|
1.5
|
300.2
|
459.2
|
3800
|
5600
|
1600
|
4800
|
9600
|
173
|
251
|
318
|
15.93
|
7234AC
|
170
|
310
|
52
|
4.0
|
1.5
|
202
|
278.5
|
4.0
|
1.5
|
285.0
|
437.6
|
3600
|
5300
|
2500
|
7500
|
15000
|
468
|
658
|
827
|
15.93
|
7236C
|
180
|
320
|
52
|
4.0
|
1.5
|
212
|
288.5
|
4.0
|
1.5
|
311.2
|
490.8
|
3800
|
5600
|
1660
|
4900
|
9800
|
181
|
264
|
334
|
16.61
|
7236AC
|
180
|
320
|
52
|
4.0
|
1.5
|
212
|
288.5
|
4.0
|
1.5
|
295.5
|
467.7
|
3400
|
5000
|
2650
|
7900
|
15800
|
492
|
691
|
869
|
16.61
|
7238C
|
190
|
340
|
55
|
4.0
|
1.5
|
227
|
303.5
|
4.0
|
1.5
|
321.3
|
524.8
|
3400
|
5000
|
1700
|
5100
|
10200
|
190
|
276
|
349
|
20.29
|
7238AC
|
190
|
340
|
55
|
4.0
|
1.5
|
227
|
303.5
|
4.0
|
1.5
|
305.1
|
500.1
|
3200
|
4800
|
2700
|
8100
|
16200
|
515
|
724
|
910
|
20.29
|
7240C
|
200
|
360
|
58
|
4.0
|
1.5
|
242
|
318.5
|
4.0
|
1.5
|
330.9
|
558.6
|
3200
|
4800
|
1760
|
5300
|
10600
|
198
|
288
|
365
|
24.49
|
7240AC
|
200
|
360
|
58
|
4.0
|
1.5
|
242
|
318.5
|
4.0
|
1.5
|
314.2
|
532.3
|
3000
|
4500
|
2800
|
8400
|
16800
|
538
|
756
|
951
|
24.49
|
|