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Inline vs Parallel-Shaft vs Right-Angle Gearboxes
The most efficient way to narrow an industrial gear unit family is to start with shaft arrangement: inline, parallel-shaft or right-angle. This eliminates many unsuitable configurations before detailed power and torque selection begins.
Quick technical comparison
R Series
| Attribute | Value |
|---|---|
| Type | Helical Gear Unit |
| Shaft arrangement | Coaxial / Inline |
| Size range | R17–R177 |
| Reference power | 0.12–200 kW |
| Reference ratio | 3.06–285.61 |
| Reference maximum torque range | 85–32000 Nm |
F Series
| Attribute | Value |
|---|---|
| Type | Parallel Shaft Helical Gear Unit |
| Shaft arrangement | Parallel Shaft |
| Size range | F37–F167 |
| Reference power | 0.12–200 kW |
| Reference ratio | 3.70–281.71 |
| Reference maximum torque range | 200–32000 Nm |
K Series
| Attribute | Value |
|---|---|
| Type | Helical-Bevel Gear Unit |
| Shaft arrangement | Right Angle |
| Size range | K37–K187 |
| Reference power | 0.12–200 kW |
| Reference ratio | 3.73–210.00 |
| Reference maximum torque range | 200–50000 Nm |
S Series
| Attribute | Value |
|---|---|
| Type | Helical-Worm Gear Unit |
| Shaft arrangement | Right Angle |
| Size range | S37–S97 |
| Reference power | 0.12–22 kW |
| Reference ratio | 7.75–307.88 |
| Reference maximum torque range | 92–4000 Nm |
What should decide the selection?
1. Shaft arrangement
Choose the family that naturally fits the machine geometry. Avoid adding couplings or transfer shafts only to force an unsuitable gearbox layout.
2. Required output speed and ratio
Calculate the target ratio from actual input speed and process output speed. Then confirm the ratio exists in a valid performance row for the selected size.
3. Output torque and duty
Compare continuous duty, service factor, shock loading and external shaft loads. A larger reference maximum torque does not mean every configuration can operate continuously at that value.
4. Output and mounting interface
Solid shaft, hollow shaft, flange and shrink-disc arrangements can change replacement compatibility even when the base size is similar.
5. Maintenance and installation
Mounting position affects lubrication. Replacement work also requires dimensional confirmation against the existing machine.
Selection rule of thumb
Use the comparison to choose the gearbox family, then use the series selection table to choose the configuration.
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需要为您机器配置一款齿轮箱？
请提供电机功率、输入转速、所需输出转速/速比、预期输出扭矩、安装方式，以及可用的安装图纸。承发可据此为您先筛选 R/F/K/S 系列配置，再做最终工程复核。
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