• Address: 62, Hazra Rd, Kolkata- 700019

    HO Address: 16, Hare Street, Kolkata- 700001

  • Call Us: 033 4014 2222

Worm Gear Box (Allroyd)

The hallmark of the ALLROYD “SM” series worm gear reducers is its well-known quality and reliability and its ability in meeting the need of industries worldwide. This is achieved by the most effective combination of the very best in engineering design, highest quality material and excellence in manufacturing. All our ALLROYD “SM” series worm gear reducers bore testimony to our commitment for excellence and boost of such inherent features.

  • Compact
  • High efficiency
  • High thermal capacity
  • Strength and resistance to shock
  • Long life
  • Unrivalled economy
  • High torque capacity
  • Smooth operation without trouble

Standards Units

Verso ‘S” type Worm Gear reduction units and Worm gear reduction Geared motor units (Universal mounting type gearboxes)
  • Size: 1 1/8” – 3 1⁄2” Centres
  • Ratio: 5/1 – 70/1

Note: For Power rating please refer our catalogue.


Metric Single Reduction Worm Gear Reducers (SM Series)
Types
  • Under driven: SUM
  • Over Driven: SOM
  • Vertical Output Up / Down: SVM

  • Size: 3” to 24” Centres
  • Ratio: 5/1 to 70/1

Note: For Power rating please refer our catalogue.


Metric Double Reduction Worm Gear Reducers (SM Series)
Types
  • Under driven: SUDM
  • Over Driven: SODM
  • Vertical Output: SVDM

  • Ratio: 75 /1 to 4900 / 1

Note: For Size & Power rating please refer our catalogue.


Heavy Duty Worm Gearboxes ( Classic )
  • Size: 10” to 24” Centres
  • Ratio: 5 /1 to 70 / 1

Note: For Power rating please refer our catalogue.


Special / Custom Build Units

HOLLOW SHAFT GEARBOX (SHAFT MOUNTED UNIT)
  • Size: 3” to 14” Centres
  • Ratio: 5/1 to 70/1
  • Rating: Same as SM series

Features
  • Shaft mounted unit wit provision of Torque Arm
  • If torque arm is not used Gearboxes can be supplied With flange on output line

Note: Dimensional Drawing - On Request.


HELI- WORM GEARBOX
  • Size: 3/40, 3/50,3.5/60,4.5/70,4.5/80,5/90,5/100,6/120 & 7/140
  • Ratio: 87.5 /1 to 245/1

Features
  • 1st reduction Helical unit is combined with standard SUM / SOM series

Note: Rating & Dimensional Drawing - On Request.


HEAVY DUTY STIRR AND AGITATOR UNIT
  • Size: 4” to 14” CTS
  • Ratio: 5/1 to 70/1

Features
  • These units are capable of taking higher bending moment because of higher Output Shaft diameter.

Note: Rating & Dimensional Drawing - On Request.


TWIN OUTPUT GEARBOX
  • Size: ( 4” + 4” ) to ( 17” + 17” ) CTS
  • Ratio: 5/1 to 70/1
  • Rating: Same as ‘ SM ‘ series

Features
  • These units are required for Tube Mill applications

Note: Dimensional Drawing - On Request.


HELIWORM HOLLOW OUTPUT SHAFT GEARBOX
  • Size: 3/40, 3/50,3.5/60,4.5/70,4.5/80,5/90,5/100,6/120 & 7/140
  • Ratio: 87.5 /1 to 245/1

Features
  • 1st reduction Helical unit is mounted on SM ( Shaft Mounted) unit with provision of torque arm, if torque arm not used then gearboxes can be supplied with flange on output line.

Note: Rating & Dimensional Drawing - On Request.


DOUBLE REDUCTION WORM GEARBOX WITH HOLLOW OUTPUT
  • Size: 1.7/30 to 7/140
  • Ratio: 75/1 to 4900/1
  • Rating: Same as Double Reduction metric Worm Gear Units

Features
  • 1st reduction SUDM Gearbox is mounted on Shaft mounted unit (Hollow Output Shaft).

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