Illustrative drawing. Actual product is confirmed to your specification at quotation.
Gearboxes
Shaft Mounted Gearboxes
Shaft mounted gearboxes have a hollow output that slides onto the driven shaft and is held by a torque arm. This removes the base and coupling and is common on screw and belt conveyors, agitators and feeders.
- Hollow shaft with torque arm
- No base or coupling needed
- Motor on a motor mount or direct flange
Specifications
- Material
- Cast iron housingAluminium housing
- Type
- Hollow shaft
- Size / section / duty
- Light dutyMedium dutyHeavy duty
- Standards
- Manufacturer's standard
Exact sizes, brands and availability are confirmed at quotation. Send the code or a photo of the old part.
Applications
- Screw conveyors and feeders
- Belt conveyors
- Agitators and mixers
- Sugar, cement and mining plant
Technical reference
Gearbox types at a glance
| Type | Shaft arrangement | Typical ratio per stage | Typical use |
|---|---|---|---|
| Worm | Right angle | About 5:1 to 100:1 | Conveyors, hoists, mixers, general duty |
| Helical inline | Coaxial / parallel | About 1.5:1 to 10:1 | Conveyors, pumps, fans, continuous duty |
| Bevel-helical | Right angle | Two or three stages | Conveyors, kilns, tight spaces |
| Planetary | Coaxial | About 3:1 to 10:1 | High torque in compact size, servo, mixers |
| Cycloidal | Coaxial | High ratios in one stage | Shock loads, robotics, heavy intermittent duty |
| Shaft mounted | Hollow output | Two or three stages | Screw and belt conveyors, agitators |
Typical single-stage ratios from general engineering practice. Exact ratios, torque and efficiency depend on the manufacturer and size.
IEC motor frame sizes and shaft ends (IEC 60072-1)
| Frame size | Shaft diameter (mm) | Shaft length (mm) |
|---|---|---|
| 56 | 9 | 20 |
| 63 | 11 | 23 |
| 71 | 14 | 30 |
| 80 | 19 | 40 |
| 90 | 24 | 50 |
| 100 | 28 | 60 |
| 112 | 28 | 60 |
| 132 | 38 | 80 |
| 160 | 42 | 110 |
| 180 | 48 | 110 |
Shaft diameter × shaft length for standard foot-mounted motors. Use this to check a gearbox input or a coupling bore against the motor.
Related and matching products
Request a quote for Shaft Mounted Gearboxes
Give us the code, size, brand and quantity, or a photo of the old part. We reply within one business day.
Common questions
- Which sizes of shaft mounted gearboxes do you supply?
- We supply shaft mounted gearboxes across the size range (Light duty, Medium duty, Heavy duty). Send the code, dimensions or a photo of the old part and we confirm the match, availability and lead time at quotation.
- Which standards apply to shaft mounted gearboxes?
- Most makers follow their own catalogue dimensions. Tell us the brand, model or existing part number and we will match it.
- Which brands can you supply?
- We supply Fenner, PIX and equivalent brands, and can quote alternatives where the application allows. Tell us your preferred brand and we confirm what is available.
- Can you supply in bulk or ship Pan India?
- Yes. We quote for single pieces and scheduled bulk supply, and ship Pan India. Confirm the quantity when you request a quote.
Need a quote on bulk or custom industrial supply?
Share your specifications and quantities — our technical team will respond with pricing and lead time within one business day.