Inline Helical Gearbox with Motor

The inline helical gearbox has the highest speed and is the most common type. An inline helical gearbox has the same planetary ratio as a spur gear, but its radial counterpart has the same center gap. The main difference between the two is the reverse module configuration.

There are many different types of helical gearboxes, including the inline helical gearbox. The inline helical gearbox has the highest speed and is the most common type. An inline helical gearbox has the same planetary ratio as a spur gear, but its radial counterpart has the same center gap. The main difference between the two is the reverse module configuration. A spur gearbox has the same number of teeth as an inline helical gearbox, but the helix angle varies. This is because the actual pitch varies depending on the helix angle.

Inline Helical Gearbox

R Series Helical Inline Gearbox

Our R Series inline helical gearbox has a grade cast iron housing and high-strength steel gears. This series of helical gearbox can be powered by either a DC or AC supply source. For safe operations, the helical gearboxes are flameproof with brake motor options. As a leading inline helical gearbox manufacturer, we understand the convenience and efficiency an inline transmission guarantees. All our inline helical gearboxes and motors are easy to maintain and replace. With our inline helical gearbox, you can attain a wide range of output torque (200 – 1800 Nm), ratio (3.33 – 287.74), mounting position (M1 – M6), and rating power (0.18 kW – 160 kW). We have a wide of inline helical gear motors/gearboxes to choose from. R series inline helical gearbox has a high-rigidity cast-iron box with ribs; the hard-toothed face gear is made of high-quality alloy steel, the surface is hardened by carburizing and quenching, the grinding teeth are finely processed, the transmission is stable, the noise is low, the bearing capacity is large, the temperature rise is low, and the service life is long. R series inline helical coaxial helical inline gearbox is widely used in metallurgy, sewage treatment, chemical, pharmaceutical, and other industries. The R series helical inline gearbox is usually vertically mounted. The size and variety of lubricating oil used in an R helical gearbox are important. The vertical installation causes the transmission gear oil to leak when the gearbox stops working.

Helical Inline Gearboxes Helical Inline Gearbox

Specifications of R Series Inline Helical Gearbox

Housing material
Cast iron/Ductile iron
Housing hardness
Gear material
20CrMnTi alloy steel
Surface hardness of gears
HRC58°~62 °
Gear core hardness
Input / Output shaft material
42CrMo alloy steel
Input / Output shaft hardness
Machining precision of gears
accurate grinding, 6~5 Grade
Lubricating oil
GB L-CKC220-460, Shell Omala220-460
Heat treatment
tempering, cementing, quenching, etc.
94%~96% (depends on the transmission stage)
Noise (MAX)
Temp. rise (MAX)
Temp. rise (Oil)(MAX)
Metallurgy, Sewage treatment, chemicals, Pharmaceutical, and other industries.

Helical Gearbox with Motor

Features of Inline Helical Gearbox

  • Iron case with pressure casting
  • High-quality weight and beautiful appearance
  • Muti aspect mounting, easy adjustment
  • Smooth operation, free maintenance
  • Low noise, smooth operation


Inline Helical Gearbox Design

Inline Helical Gearbox Design

Conduit box position

Helical Motor Gearbox

Mounting Position

Coaxial Helical Inline Gearbox

Additional information



Product Quick Detail:

  • Standard and non-standard available
  • With high quality and competitive price
  • Prompt delivery
  • Packing as per customer’s demand.

We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

pruduct quality report

Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages