Leading Manufacturer of Backstop SMSR Gearbox in Gujarat
We manufacture a wide variety of Backstop SMSR Gearboxes and Cement Plant Gearboxes of numerous specifications and also customize them according to the requirements of our clients. These gearboxes feature a backstop mechanism that prevents the conveyor from reversing when it is abruptly stopped for any reason.
We are the leading Backstop SMSR Gearbox exporter and supply them to cities such as Hyderabad, Noida, Pune, Surat, and Kolkata for diverse industries such as cement industries, paper and pulp industries, iron and steel industries, textile industries, chemical industries, plastic industries, mining, etc.
Such gear boxes eliminate the constraint of foundations as well as couplings. Furthermore, there is no layout concern. These offer ideal and lasting alignment of the gearbox and allow the appropriate setting of the motor.



What Is a Backstop SMSR Gearbox?
The backstop SMSR (Shaft Mounted Speed Reducer) gearbox is defined as shaft mounted helical gearbox with a backstop device which is typically one way (sprag type) clutch which enables the rotation of the output shaft in both directions of work and immediate locking if it tries to rotate backward.
If the loaded inclined conveyor or bucket elevator stops, the weight can pull back. This is avoided through a backstop gearbox.
Technical Specifications
| Parameter | Details |
|---|---|
| Type | Shaft mounted speed reducer with backstop |
| Gear type | Helical |
| Power rating | [0.5 HP to 100 HP] |
| Ratio | [5:1 to 25:1] |
| Output torque | [as per model] |
| Mounting | Shaft mounted with torque arm |
| Backstop device | Built-in one-way / sprag clutch |
| Lubrication | Oil bath |
Salient Features
- High performance
- Very affordable
- High tolerance
- Compact design
- Affordable rates
- Resistant to rust & corrosion
- Very durable
- Negligible repair expenses
Key Applications
- Inclined and belt conveyors
- Bucket elevators
- Cement plants and clinker handling
- Mining and mineral processing
- Iron and steel plants
- Paper and pulp industry
- Textile and chemical industry
- Plastic and general manufacturing units
FAQs
Prevents the rotation of the shaft in the reverse direction if the motor stops, holding the load.
Rotation is allowed only in one direction. If there is an attempt by the shaft to rotate in the reverse direction, the clutch locks it.
The backstop SMSR gearbox is mostly used in inclined conveyors, bucket elevators, cement plants, mining, and steel plants.
Not necessary. It is installed directly on the driven shaft using torque arm.
