American
Standard Gear Hobs
(ANSI B 94.7)
| |
● |
14.5°or 20°Pressure
angle. |
 |
| |
● |
Non-topping. |
| |
● |
Right or
left hand. |
| |
● |
Single or
multiple thread ★ |
| |
● |
British standard
gera hobs to BS 2062/1 can also be supplied. |
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● |
★ It is necessary
to consult with customers about accuracy grade of multiple thread
hobs in ordering.
★★ The old 2.157/DP may be supplied, please inquire. |
| |
● |
★★★ It is
better to design with inserted blade hob for DP<2.54. |
Finishing Standard Depth ★★
(To ANSI B6.1)
|
Multiple Thread
Hobs Unit：Inches
|
Diametral
Pitch
径 节
|
Number
of Thread
头 数
|
Outside
Dia.
外 径
|
Overall
Length
全 长
|
Hole
Dia.
孔 径
|
|
2.00-2.49
|
2
|
6.50
|
8.00
|
1.50
|
|
7.00
|
2.00
|
|
2.50-2.99
|
2
|
6.50
|
8.00
|
1.50
|
|
2.00
|
|
3.00-3.99
|
2
|
5.50
|
5.50
|
1.50
|
|
6.00
|
6.00
|
2.00
|
|
4.00-4.99
|
2,3
|
5.50
|
5.50
|
1.50
|
|
2.00
|
|
5.00-6.99
|
2,3,4
|
5.00
|
5.00
|
1.50
|
|
2.00
|
|
7.00-7.99
|
2,3,4
|
4.00
|
4.00
|
1.25
|
|
1.50
|
|
4.50
|
4.50
|
2.00
|
|
8.00-8.99
|
2,3,4
|
3.75
|
3.75
|
1.25
|
|
1.5
|
|
9.00-11.99
|
2,3,4
|
3.50
|
3.50
|
1.25
|
|
1.50
|
|
12.00-13.99
|
2,3,4
|
3.25
|
3.25
|
1.25
|
|
14.00-15.99
|
2,3,4
|
3.00
|
3.00
|
1.25
|
|
16.00-19.99
|
2,3,4
|
2.75
|
2.75
|
1.25
|
|
