SEW Eurodrive

in 1931, Christian Pähr; The German banker did not think that one day, the gearbox manufactured by his company would become a part of industrial machines all over the world as a valuable and necessary part. Although nearly 100 years have passed since the production of sew gearbox , it is still one of the well-known and reliable brands that entrepreneurs in the field of mechanical engineering trust in its quality.

SEW gearboxes are produced and supplied in different types and for different industries. If you are active in any of the oil, gas and petrochemical industries, aerospace, rail and railway industries, shipbuilding, automobile manufacturing, steel, cement, tile and ceramic, agriculture, food and pharmaceutical, water and sewage, etc., to choose and buy You can get a suitable sew gearbox at the best price from the consultants; Sew importer and agent in Iran, get help.

Contents:

• Variety of SEW-EURODRIVE products
• Classification of sew gearbox types
• Buying SEW SEW gearboxes at the best price
• What are the advantages of SEW gearbox over competitors?
• Application of gearbox in different industries
• How to read industrial gearbox license plate
• 7 steps to choose and buy SEW gearbox
• Frequently Asked Questions

Variety of SEW-EURODRIVE products

” SEW ” produces more than 200 types of products, of which the gearbox and its different models are only a part of this unique variety. Some of the products of this famous German company are:

• gearbox (GEARMOTORS)
• Gear units (GEAR UNITS)
• MOTORS
• INDUSTRIAL GEAR UNITS
• DECENTRALIZED DRIVES/MECHATRONIC
• INVERTER TECHNOLOGY
• SERVO DRIVE TECHNOLOGY
• Industrial Communication
• Control technology (CONTROL TECHNOLOGY)
• software
• SAFETY TECHNOLOGY
• CONTACTLESS ENERGY TRANSMISSION SYSTEM
• Practical and educational modules (DIDACTICS MODULES)
• And…

 

 

In this article, we will exclusively introduce the gearbox product of this company.

Classification of sew gearbox types

If you intend to buy a SEW gearbox, you must first choose a gearbox suitable for your production activity. consultants are ready to provide expert advice for assessing your needs and recommending the best type of gearbox, but in the rest of this article you can get the necessary information about the types of gearbox models of this brand.

The choice of SEW gearbox depends on various factors such as the location of the gearbox, input speed and power (horsepower or kW), the shape and form of the gearbox installation, the shape and form of the output shaft or hollow shaft, the shape of the gears, the amount of force applied to the gearbox, etc. has it.

 

But in general, sew brand gearboxes can be categorized as follows:

 

 

SEW-EURODRIVE gearboxes by application:

 

Standard gearboxes	These gearboxes are designed for general applications.
Electric rail system gearboxes	For applications that require continuous and uniform movement.
Servo gearboxes	For applications that require high precision and precise motion control.
Variable speed gearboxes	For applications that require speed changes during operation.
Stainless steel gearboxes	For applications that require corrosion resistance.
Explosion-proof gearboxes	For applications that require resistance to hazardous conditions.

 

 

SEW gearbox types based on power transmission type:

 

 

Based on the type of power flow they transmit, there are three main designs:

• Parallel shaft gearboxes
• Straight or right angle shaft gearboxes
• Solar or planetary gearboxes

 

In parallel shaft gearboxes and planetary gearboxes, the input and output shafts are in the same direction (on the same level) and therefore the power is transmitted directly.

 

And direct shaft gearboxes include these categories:

• helical-bevel gearboxes
• Helical-worm gearboxes
• SPIROPLAN® right-angle gearbox (exclusive product of SEW-EURODRIVE)

 

 

Types of sew direct shaft gearboxes:

R series	It has a base and is installed horizontally and can be provided with or without brakes.
RF series	This series is flanged and installed vertically and can be provided with or without brakes.
RX series	This series is based and installed horizontally and can be presented as a single floor.
RXF series	This series is based and installed horizontally and can be presented as a single floor.

 

 

 

 

Buying SEW SEW gearboxes at the best price

 

 

In this section, we will introduce 7 models of gearboxes from the sew brand, and to buy any of them, just click on the more information and purchase button.

 

 

1- Helical sew gearbox

 

 

 

This gearbox (Sew Helical Motor Gearbox) is a direct shaft type and is known as a helical gearbox due to its spiral structure.

 

Helical gearboxes are used in three types: base, flange, flange base.

 

Flanged helical gearboxes for vertical installation cases; Like mixers and helical gearboxes, it is mostly used in material transfer lines.

 

 

 

 

2-  Sew spiral gearbox

 

 

 

 

The SEW Worm Motor Gearbox is a product with extraordinary efficiency because it is designed to provide the required output torque in exchange for a reduction in speed. This product is very quiet and has various torques and speeds.

 

 

This gearbox can be used in any sector of the industry such as chemical industries, mines, elevator gearboxes and industrial machinery. The flanged SEW S series helical gearbox has the ability to install flanges in both directions (A and B).

 

 

 

 

 

 

3-  Sew suspension gearbox

 

 

 

 

SEW Parallel Shaft Helical Motor Gearbox, due to its multi-axis capability, has the ability to create high conversion ratios and high torques, and in cases where high torque and continuous operation are required (such as mixer machines or Linear drive systems in multi-purpose overhead cranes are an excellent choice.

 

 

Also, the design and appearance of this product has made it very useful for various industries such as steel industry, chemical industry and sewage aeration.

 

 

 

 

 

 

4-  SEW industrial gearbox

 

 

 

 

SEW Industrial Motor Gearbox, despite its light weight, has an extremely strong structure and configuration that creates a very high torque at low speeds by using successive helical gears in parallel axes, and is therefore very economical.

 

 

This product is used in heavy industries such as petrochemical industries, steel industries, cement industries, copper industries, etc.

 

 

Among other features of sew brand industrial gearbox, we can mention the proper cooling system of this model.

 

 

 

 

 

 

5-  Sew solar gearbox

 

 

 

 

SEW solar gearbox P series, which is also called SEW Planetary Motor Gearbox; With high output torque tolerance, it is offered in two series P.RF (simple) and P.KF (oblique) in the ratio of conversions from 100 to 4000 (4 and 5 floors) and smaller dimensions than other types of gearboxes.

 

 

SEW planetary gearbox is produced in 11 different models and can be installed through the base and flange.

 

 

 

 

 

 

6-  Cranville sew gearbox

 

 

 

 

K series cranwheel pinion sew gearbox has 90 degree output from two directions Z and U, which has the ability to receive the output shaft from two directions with a helical gear.

 

 

This product is also known as SEW Helical Bevel Motor Gearbox or SEW Helical Bevel Motor Gearbox and is produced and marketed in different models.

 

 

 

 

 

 

7-  Sew variable speed gearbox or variator

 

 

 

 

The SEW Variator Motor Gearbox is coded VU and VZ and is usually offered with 1:4, 1:6 and 1:8 conversion ratios.

 

 

Also, the variator of the friction disc model with the D code is usually supplied with a conversion ratio of 1:4 and 1:5 and a power of 11 kW.

 

 

SEW gearbox sizing is variable, from code D16 to D46, and it is good to know that the V-shaped belt in this gearbox reduces the output speed.

 

 

 

 

 

 

What are the advantages of SEW gearbox over competitors?

 

 

SEW-EURODRIVE gearboxes have several advantages over their competitors:

 

 

1. High efficiency: SEW gearboxes are designed to transmit power efficiently. They have an optimized design that reduces energy loss during operation.

 

 

2. Long maintenance-free life: SEW gearboxes have a long maintenance-free life.

 

 

3. Reduced energy consumption: The SEW-Eurodrive electric motor helps to reduce energy consumption, which leads to cost savings and overall system efficiency improvement.

 

 

4. Low noise performance: SEW gearboxes have low noise performance.

 

 

5. High market share: SEW-EURODRIVE has the largest market share among gearbox manufacturers with a market share of 23.5% in 2019.

 

 

6. Wide range of products: SEW-EURODRIVE is one of the leading gearbox manufacturers in the world and offers a wide range of products for various industries.

 

 

In addition to these, other features of sew gearbox include:

• High conversion ratio
• Convenient and fast combination of gearbox
• Very affordable
• High sensitivity and accuracy in product design and production
• Special attention to the needs of different industries
• Ideal after-sales service
• High quality products and global standards
• Having the ability to convert torque in high powers
• Can be used in all parent industries such as oil, petrochemical, steel, food, etc.
• Guarantee of product authenticity and health

 

 

 

These advantages have made SEW-EURODRIVE one of the top gearbox manufacturers in the world.

 

 

 

 

Application of gearbox in different industries

 

 

As mentioned, gearbox is one of the essential equipment in almost most industries. The applications of gearboxes are so diverse that without gearboxes, it can be said that the entire world economy will stop! They move conveyor lines, move loads up and down, and generally move a variety of goods from point A to B in all kinds of systems.

 

 

Gearboxes are used in many industries and industrial machines and have different applications in each one.

 

 

Below are several examples of these uses:

 

 

1. Apron feeders: These devices are used to transport raw materials in mining and construction industries.

 

 

2. Feed mills: In this industry, gearboxes are used to move conveyors and other equipment.

 

 

3. Sugar and sugarcane factories: gearboxes are used in this industry to control the speed and torque of machinery.

 

 

4. Roller mills: These machines are used to crush raw materials in the mining and construction industries.

 

 

5. Cable conveyors: These devices are used to transport materials in various industries.

 

 

6. Concrete factories: gearboxes are used in this industry to control the speed and torque of mixers and other equipment.

 

 

7. Tunnel boring machines: These machines are used to dig tunnels in construction and mining projects.

 

 

8. Recycling and Garbage Machines: Gearboxes are used in these machines for shredding and separation.

 

 

9. Rubber and plastic machines: gearboxes are used in this industry to control the speed and torque of machines.

 

 

10. Hydraulic steel factories: gearboxes are used in this industry to control the speed and torque of machinery.

 

 

11. Continuous (continuous) castings: In this industry, gearboxes are also used to control the speed and torque of machinery.

 

 

12. Cable transportation systems: These devices are used to transport passengers and goods in mountainous areas.

 

 

13. Milling machines: gearboxes in these machines are also used to control the speed and torque of machines.

 

 

14. Oil extraction devices from seeds: In these devices, gearboxes are also used to control the speed and torque of the machines.

 

 

15. Shredders: Gearboxes are used in these machines to crush materials.

 

How to read industrial gearbox license plate

To use each product optimally, it is necessary to read the information on the label. Regarding SEW brand gearboxes, you also need to know the meaning of numbers and abbreviations on the nameplate.

In the picture below, you can see an example of the nameplate of the SEW electric gearbox, which contains the following information:

 

1. 1. Gearbox engine name
   2. Serial number
   3. Frequency (Hz)
   4. Electric motor power (kW)
   5. power factor
   6. Temperature class
   7. Maximum output torque (Nm)
   8. Conversion ratio
   9. Type and volume of engine filling
   10. weight (kg)
   11. star connection (volts)
   12. degree of protection
   13. Brake voltage (V)
   14. Brake torque (Nm)
   15. Brake control
   16. Inverter model
   17. installation method

 

 

 

 

 

 

 

The name of SEW gearboxes consists of 9 components and starts from the side of the output shaft. According to the order of the table below, from the left side, you can decipher the gearbox nomenclature.

 

 

 

 

 

 

 

 

SEW gearbox designation codes

 

 

To know the codes that you will see on the nameplate of different gearboxes, we draw your attention to the tables of each item.

 

 

1- Gearbox model

 

 

code	Gearbox model
RX	Helical (single layer)
R	Helical (2 or 3 floors)
F	Helical parallel shaft
K	Helical ball 90 degrees
S	90 degree spiral
W	Spiroplan 90 degrees

 

 

2- Shaft model

 

 

code	Description
(vacant)	Solid shaft with spikes
A	Hollow shaft with spur
H	Hollow shaft shrink disc without barbs
V	Flanged hollow shaft according to DIN 5480 standard
T	TorqLOC ® flanged hollow shaft

 

 

3- The table of types of SEW gearbox flanges

 

 

code	Description	R	F	K	S	W
(vacant)	without flange (standing)	x	x	x	x	x
F	B5 umbilical flange on one side with holes throughout	x	x	x	x	x
F *	B5 umbilical flange on both sides with holes throughout			x	x
Z	B14 umbilical flange with threaded holes	x	x	x	x
M	Reinforced B5 flange for agitators	x

 

 

* Shown with AB to indicate flange on both sides in installation method.

 

 

4- Table of SEW gearbox sizes

 

 

size	R	F	K	S	W
*19			x
*20					x
27	x	x
*29			x
30*					x
37	x	x	x	x	x
39			x
47	x	x	x	x	x
49			x
57	x	x	x	x
67	x	x	x	x
77	x	x	x	x
87	x	x	x	x
97	x	x	x	x
107	x	x	x
127		x	x
137	x
147	x
157		x	x
167	x		x
187			x

 

 

*Supplied only with integral electric motors.

 

 

5- SEW gearbox options

 

 

code	Description	R	F	K	S	W
/R	Backlash is reduced	x	x	x
/T	Torque arm			x	x	x
/G	Plastic buffer		x
B	Holes all over the housing			x		x
B	Threaded holes on the housing		x

 

 

6- Secondary gearbox

 

 

The following R series gearboxes can be used as a secondary input gearbox:

 

 

R17	R87
R37	R97
R57	R107
R77

 

 

7- SEW gearbox input components

 

 

A.D	Input shaft assembly
A.M	Adapter for installing IEC or NEMA electric motors
AQA	Adapter for mounting servo motor with spur
AQH	Adapter for installing a servo motor with a spurless shaft
AR	Adapter with torque limiting sliding coupling – use with flanged electric motor
AT	Adapter with eccentric hydraulic coupler

 

 

8- The size of input components to SEW gearbox

 

 

A.D	A.M		AR*		AQA AQH	AT
	NEMA	IEC	In the electric motor	Between gearboxes
1	56	63	71	85	80	311
2	143	71	80	105	100	612
3	145	80	90	115	1/115	321
4	182	90	100	135	115/2	322
5	184	100	112	145	115/3	421
6	215/213	112	132S/M	165	1/140	422
7	256/254	132 ml	132 ml	185	140/2	522
8	286/284	132S/M	160	195	140/3	541
	326/324	160	180		190/1	542
	365/364	180			190/2
		200			190/3
		225
		250
		280

 

 

* The AR adapter can be placed between the gearboxes or between the gearbox and the electric motor.

 

 

9- Options of input components to SEW gearbox

 

 

code	Description	A.D	A.M	AQ	AR	AT
/RS	Backstop	x	x			x
/P	Electric motor installation platform	x
/W	speed control				x
/ZR	Machined central navel	x
/ZS	For base engine	x
/BM(G)	Disc brake					x
/BM(G)/HF	Brake with release screw					x
/BM(G)/HR	Brake with release lever					x

 

 

 

 

SEW and product communication network protocols

 

 

We mentioned earlier that the SEW brand is one of the pioneers in the manufacture of gearboxes, servo drives, inverters and advanced testing and measuring tools on a global scale, which began its activity in 1931 in Germany with the production of inverters, servo drives and gearboxes.

 

 

It is good to know that SEW-EURODRIVE products use several different network protocols for communication:

 

 

1. PROFINET IO: This industrial network protocol was developed by Siemens and is used for real-time communication in industrial automation systems.

 

 

2. Ethernet IP: Industrial network protocol for real-time communication in industrial automation systems

 

 

3. Modbus TCP: Industrial network protocol for real-time communication in industrial automation systems

 

 

4. EtherCAT®: Industrial network protocol for real-time communication in industrial automation systems

 

 

These protocols allow the motors to communicate with the control system and send information in real time. Also, I/O modules can be used to expand the drive system.