| Place of Origin: | CHINA |
|---|---|
| Brand Name: | YIZGEAR |
| Model Number: | IG22082801 |
| Minimum Order Quantity: | 1 Piece |
| Price: | $200.0/Piece |
| Packaging Details: | Plywood Crate |
| Delivery Time: | 55 Days |
| Payment Terms: | L/C, D/P, T/T, Western Union |
| Supply Ability: | 500 Pieces/Month |
| Material: | 42CrMo/AISI 4140 | Heat Treatment: | Quenching & Tempering |
|---|---|---|---|
| Hardness: | 230-260 HB | Accuracy: | ISO 8-9 Grade |
| Type: | Annular Gear | Module: | 1-25 Module |
| Highlight: | AISI 4140 Steel Internal Spur Gear,Transmission Annular Gear,AISI 4140 Steel Annular Gear |
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1) The difference between the internal gear and external Gear
The major difference between an internal and an external gear beside where the gear teeth are generated on the workpiece.
For example, while meshing a pair of external gears, their rotation will go in opposite directions;
ut in the meshing on an external and internal gear their rotation will go in the same direction.
Another major difference between the two types of gears is that a low ratio reduction is unsuitable
in the case of an internal and external gear, but is completely acceptable in the meshing of an external and another external gear.
| Products | Internal Gear |
| Custom Made | √ |
| Gear Profile Type | Cylindrical Gear |
| Gear Teeth manufacturing | Gear Shaping |
| Gear Teeth Grinding | * If needed |
| Module (M) | Custom |
| Number of Teeth (Z) | Custom |
| Pressure Angle (α) | Custom |
| Helix Angle (β) | Custom |
| Teeth Accuracy Grade | ISO 8-9 Grade |
| Heat Treatment | Quenching & Tempring/ Induction Hardening |
| Hardness | 230-260 HB |
| STEEL CODE GRADES COMPARISON | |||||
| CHINA/GB | ISO | ГΟСТ | ASTM | JIS | DIN |
| 45 | C45E4 | 45 | 1045 | S45C | CK45 |
| 40Cr | 41Cr4 | 40X | 5140 | SCr440 | 41Cr4 |
| 20CrMo | 18CrMo4 | 20ХМ | 4118 | SCM22 | 25CrMo4 |
| 42CrMo | 42CrMo4 | 38XM | 4140 | SCM440 | 42CrMo4 |
| 20CrMnTi | 18XГT | SMK22 | |||
| 20Cr2Ni4 | 20X2H4A | ||||
| 20CrNiMo | 20CrNiMo2 | 20XHM | 8720 | SNCM220 | 21NiCrMo2 |
| 40CrNiMoA | 40XH2MA/ 40XHMA |
4340 | SNCM439 | 40NiCrMo6/ 36NiCrMo4 |
|
| 20CrNi2Mo | 20NiCrMo7 | 20XH2MA | 4320 | SNCM420 | |
