机座号
160
180
200
225
250
280
315
355
400
Frame
A
基本尺寸
254
279
318
356
406
457
508
610
686
Basic dimension
极限偏差
±1.05
±1.4
±1.75
Max. deviation
A/2
127
139.5
159
178
203
228.5
305
343
±0.75
±1.0
±1.25
B
210
311
349
左右B之差
1.05
1.4
1.75
Difference between left B and right B
C
28
30
43
56
115
121
102
±1.5
±2.0
左右C之差
0.45
0.6
0.75
Difference between left C and right C
D
42
48
55
60
70
85
100
110
+0.018
+0.030
+0.035
+0.002
+0.011
+0.013
E
82
105
130
165
安装尺寸
Mounting
±0.43
±0.50
dimensions
F
12
14
16
18
20
22
0
-0.043 0
-0.052
键与
G
37
42.5
49
53
62.5
76
90
键槽
Key
and
-0.2
key
GD
8
9
10
11
groove
-0.09
-0.11
H
-0.5
-1.0
K
15
19
24
35
+0.43
+0.52
+0.62
螺栓直径
M12
M16
M20
M24
M30
Bolt diameter
AB
300
450
500
560
700
800
外形尺寸
AC
317
395
445
495
555
625
705
790
Outline
BB
234
335
365
385
420
550
dimension
HA
13
25
HD
460
510
540
590
660
725
805
895
L
419
417
452
492
585
693
735
920
1075