SF Series Solid Shaft Helical Gearbox

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SF Series Solid Shaft Helical Gearbox

A helical gearbox is a mechanical transmission system that uses helical gears to transfer power between two rotating shafts. They are commonly used in industrial applications that require high torque and efficiency.

SF series spiral worm gearbox is a kind of S series flange-mounted spiral worm gearbox. SF series helical gear worm gear reducer is a combination of helical gear and worm gear drive reducer. This series of reducers has complete specifications, a wide speed range, good versatility, suitable for various installation methods, safe and reliable performance, and long service life, and is in line with international standards.

SF Series Flange Mounted Helical Gearbox Specifications:

Product name: SF series helical gearbox
Model: SF37、SF47、SF57、SF67、SF77、SF87、SF97
Mounting ways: Foot mounted, flange mounted, hollow shaft mounted, torque arm
Input ways: Motor input, AM (IEC) flange input, and shaft input
Output way: Solid shaft output or hollow shaft output
Efficiency: up to 96%
Housing material: HT250 high-strength cast iron
Worm Gear material: High-quality copper
Gear material: 20CrMnTi
Surface hardness of gears: HRC58-62
Input/Output shaft: 40Cr steel
Heat treatment: Carburizing and quenching
Bearing: C&U or another brand
Oil seal: NAK or another brand
Lubricating oil: Gear oil
Packing: Pywood case

SF Series Flange Mounted Helical Gearbox Parameters:

Size 37 47 57 67 77 87 97
Structure S  SA  SF  SAF  SAT  SAZ
Input power(kW) 0.18-0.75 0.18-1.5 0.18-3 0.25-5.5 0.55~7.5 0.75-15 1.5-22
Ratio 10.27~165.71 11.46-244.74 10.75-196.21 11.55-227.20 96-241.09 11.83-223.26 12.75-230.48
Permissible torque(N.m) 90 170 300 520 1270 2280 4000

Advantages of SF Series Helical Gearbox:

1. There are helical gear and worm gear combinations to improve the torque and efficiency of the machine. This series of products has complete specifications, a wide speed control range, good versatility, suitable for various installation methods, safe and reliable performance, long service life, and implementation of international standards.

2. Body surface concave and convex heat dissipation, strong vibration absorption, low-temperature rise, and low noise.

3. The helical worm gearbox has good sealing performance and strong adaptability to the working environment.

4. Helical worm gearbox has high transmission accuracy, especially suitable for frequent starting places. It can be connected with various types of reducers and equipped with various types of motor drivers. It can be installed in the 90-degree drive operating position.

5. The critical parts of the spiral worm gearbox are made of highly wear-resistant materials and special heat treatment. It has the characteristics of high machining precision, stable transmission, small volume bearing capacity, and long service life.

6. The helical worm gear reducer can be equipped with various types of motors to form an electromechanical integration, fully guarantee the product’s quality characteristics.



We are one of the best helical gearbox suppliers. We can offer wide helical gearbox stock. We have exported our products to clients around the world and earned a good reputation because of our superior product quality and after-sales service. We warmly welcome customers both at home and abroad to contact us to negotiate business, exchange information, and cooperate with us!

Advantages Of Helical Gearbox:

Helical gearboxes offer several advantages over other types of gearboxes, including:

Higher torque capacity: Helical gears in a helical gearbox have a larger contact area than spur gears, which allows them to deliver higher torque loads.

Smooth and quiet operation: The Angle of the helical gears’ teeth allows them to gradually make contact with each other, resulting in a smooth and quiet operation compared to spur gears.

Higher efficiency: Helical gears in helical gears are more efficient than other types of gears, resulting in reduced power losses and improved energy efficiency.

Higher Carrying capacity: Helical gearboxes have higher carrying capacity compared to other types of gearboxes, which makes them suitable for heavy industrial applications.

Longer life: Smooth and progressive meshing of helical gears results in less wear and tear, which extends the life of the gearbox.

Helical Gearbox Application:

Conveyor systems: Helical gear boxes are commonly used in conveyor systems to transfer power between the motor and the conveyor belt.

Mining equipment: Helical gear boxes are used in mining equipment such as crushers, grinders and conveyors to handle heavy loads and high torque requirements.

Power generation: helical gear box is used for wind generator, hydraulic generator and other power generation equipment, to transfer the power of the rotor to the generator.

Marine applications: Helical gear boxes are used in Marine applications such as ships and boats to transfer power between engines and propellers.

Industrial machinery: Helical gear boxes are widely used in industrial machinery, such as pumps, mixers and extruders, to transfer power between the motor and the equipment being driven.

Automotive applications: Helical gear boxes are used in automotive applications such as transmissions and differentials to transfer power between the engine and the wheels.