High Precision Custom Made CNC m1 helical spur straight round steel gear rack and pinion
| Process |
Turning, Hobbing, Milling, Shaping, Broaching,Shaving, Grinding and Lapping |
| Heat treat |
Quenching & Tempering, Carburizing & Quenching, High-frequency Hardening, Carbonitriding etc. |
| Finishing |
Blacking, Polishing, Anodization, Chrome Plating, Zinc Plating, Nickel Plating |
| Module |
1∼30 |
| Features |
The most common type of gear;Easy to manufacture;No axial force when running;Economic and good quality consistence. |
| Applications |
General Transmission Components; Offshore Drilling |
|
Regular Materials and Heat Treatment |
|||||
|
GB/JB |
DIN |
JIS |
SAE/AISI |
Case Hardening |
Case Hardness |
|
40CrNiMo |
34CrNiMo6 |
SNCM439 |
4340 |
Nitriding |
46-50HRC |
|
20CrMo |
20CrMo44 |
SCT42 |
4119/4118 |
Carburizing |
42-45HRC or 55-60HRC |
|
20CrNiMo |
-- |
SNCCM220 |
8620 |
Carburizing |
55-60 HRC or 58-62 HRC |
|
20CrMnTi |
-- |
-- |
-- |
Carburizing |
55-60 HRC |
Heat Treatment Cycle: Carburizing /Nitriding → Normalize → Quench → Clean → Temper → Shot Blast
Please feel free to send us requirements and drawings for quotation.
Q:How long is your delivery time?
A:Generally it is 45-90 days because we mainly do custom parts and it is according to quantity.
Q:Do you provide samples?
A:Samples will be shipped to you first for approval before production.
Q:What is your terms of payments?
A:Payment≤1000USD,100% in advance.
Payment >1000USD,30% T/T in advance,balance before shipments.
Q:What could clients get before shipments?
A:1)Production weekly update
2)Material cert,dimension reports and plenty of photos
3)Other reports as customer's request
Q:What is your quality assurance term?
A:1 Year assurance,expect some consumption parts.
More questions or confusions,please feel free to contact us:
Email:sales at shsmm.com
Phone:86-21-35310435
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