How the order code is structured
The model designation of a standard gear rack (ZST) is made up of the following 8 positions in sequence. The number of each segment below corresponds to the option table with the same number later on this page.
__ ZST M6 - 59×49×1000 -S -I -6 -D
1__Quantity
2ZSTModel
3M6Pitch type
459×49×1000Size b×hk×L1
5-SToothing
6-IMaterial / hardness
7-6Gear quality grade
8-DHoles
Free-input positions
- ① Quantity Enter the order quantity
- ④ Size Enter width×height×length (b×hk×L1, mm) for the selected model
Options for each position
2Model
| Code | Description |
|---|---|
| ZST | Standard gear rack (with mounting holes) |
| MST | Short gear rack (without mounting holes, for butt-joint connections) |
3Pitch type
| Code | Description |
|---|---|
| M___ | Modular pitch |
| T___ | Metric pitch (mm) |
5Toothing
| Code | Description |
|---|---|
| -S | Helical (right, 19.5283°) |
| -G | Straight |
7Gear quality grade
| Code | Machining |
|---|---|
| -4, -5, -6, -7 | Ground |
| -8 | Milled, soft |
| -9 | Ground, nitrided |
| -11 | Milled, induction hardened |
6Material and hardness
| Code | Material | Treatment |
|---|---|---|
| -C | 16MnCr5 | Case-hardened |
| -I | C45 | Induction hardened |
| -W | C45 | Soft |
| -N | 42CrMo4+QT | Nitrided |
| -V | 42CrMo4+QT | Tempered |
| -H | X90CrMoV18 (stainless steel) | Through-hardened |
8Hole options
| Code | Description |
|---|---|
| -D | With dowel and mounting holes (Fig. 1) |
| -OP | Without dowel holes (Fig. 2) |
| -OH | Without holes (Fig. 3) |
Short gear rack (MST)
The short gear rack has no mounting holes, and its toothing code differs from the standard gear rack:
__ MST M6 - 59×49×207 -SL
| Code | Description |
|---|---|
| MST | Short gear rack (without mounting holes) |
| -SL | Short gear rack, helical (left, 19.5283°) |
| -G | Short gear rack, straight |