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HSS Module m1~m10 PA20 factory standard gear cutter hob tool in stock
Parameter:
Module: m
Pressure angle: PA=20
Addendum: S+F=1.25m
Working depth: D+F=2.25m
Total tooth height: h=2.5m
Clearance of tooth bottom: CK=0.25m
Tip radius: r=0.3m
Pitch: np=πm
Tooth thickness: sn=np/2
Single: Thread Right and Left Hand
Size: (mm.)
GB6083~6084~85 Class AA, A,
| Module | Outside Dia. | Overall Length | Hole Dia. |
| 1 | 50 | 32 | 22 |
| 1.25 | |||
| 1.5 | 40 | ||
| 1.75 | 63 | 50 | 27 |
| 2 | |||
| 2.25 | 71 | 55 | |
| 2.5 | |||
| 2.75 | 63 | ||
| 3 | |||
| 3.25 | 80 | 71 | 32 |
| 3.5 | |||
| 3.75 | 90 | 80 | 32 |
| 4 | |||
| 4.5 | 90 | ||
| 5 | 100 | 100 | |
| 5.5 | 112 | 112 | 40 |
| 6 | |||
| 6.5 | 118 | 118 | |
| 7 | 125 | ||
| 8 | 125 | 132 | |
| 9 | 140 | 150 | |
| 10 | 150 | 170 | 50 |
Note:
1.Module 11-20 can also be ordered
2.Hobs with inch holes of 7/8. 1. 1 1/16. 1 1/4. 1 1/2. 1 3/4 and 2 in can be made
3.Gear hobs of JIS, BS, DIN and ANSI standard can be ordered too










Hob cutter series : gear hob , pre-shaving gear hob, pre-grind gear hob, involute spline hob, parallel side spline hob, ground sprocket hob , and timing pulley hob.
The production process of HSS M2 Module m1~m10 PA20 factory standard gear cutter hob tool in stock

Material Introduction:
A. W6Mo5Cr4V2 (GB) M2( ASTM), S6-5-2(DIN), SKH51(JIS)
chemical composition:C 0.85, Si 0.38, Mn 0.35, P≤0.030, S≤0.030, Cr 4.10, W 6.00, Mo 4.80 V 1.85
main application:It is widely used for making all kinds of cutters and durability cold-work die
B. W6Mo5Cr4V2Co5 (GB), M35( ASTM), 1.3243(DIN), SKH55(JIS)
chemical composition: C 0.93, Si 0.38, Mn 0.35, P≤0.030, S≤0.030, Cr 4.10, W 6.30, Mo 4.80 V 1.85, Co 5.00
main application:It is often used for making blades with high-speed and great cutting difficulty as it’s good abrasive resistance
W6Mo5Cr4V2(M2),W9Mo3Cr4V(W9),W18Cr4V(W18),W6Mo5Cr4V2Al(M2Al),W6Mo5Cr4V2Co5(M35),W2Mo9Cr4VCo8(M42),W4Mo3Cr4VSi(4341),W4Mo2Cr4VSi(4241)

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