Gear Reducer

  • Designed for applications requireing moderate backlash/stiffness
  • Sizes from 210mm to 360mm
  • Backlash from 1 to 7 arc-min
  • Gear Ratios from 3 to 100
  • Three Stages Available
  • Lifetime Lubrication
$5.00
Our wide selection of Planetary Gearboxes cover most applications. Whether you are looking for low cost, or high precision, we have a quality product at a great price! Please verify all dimensions when matching a gearbox to a specific motor, as critical dimensions will vary among series and manufacturers.
  • Standard and High Precision Available
  • Compatible with Most Motors
  • Sizes from 42mm to 240mm
  • Backlash as low as 1 arc-min
  • Gear Ratios from 3 to 500
  • Lifetime Lubrication
$389.40
Our wide selection of In-Line Planetary Gearboxes are offered at a low cost without sacrificing the precision and quality. Please verify all dimensions when matching a gearbox to a specific motor, as critical dimensions will vary among series and manufacturers.
  • Offers space, weight, and money saving for your application!
  • Sizes from 100 to 240
  • Gear Ratios from 3 to 100
  • Available in 1 and 2 Stages
  • Backlash as low as 1 arc-min
  • Max Output Torque of 31,951 in-lbs
$1.00
Our wide selection of In-Line Planetary Helical Gearboxes are offered at a low cost without sacrificing the precision and quality! Please verify all dimesniosn when matching a gearbox to a specific motor, as critical dimensions will vary among series and manufacturers.
  • Designed for applications that are both space and cost restricted
  • Offers the industry's highest roque ratings
  • Sizes from 40mm to 120mm
  • Gear Ratios from 3 to 500
  • Available in 1, 2, and 3 Stages
  • Backlash as low as 12 arc-min
$531.00
Our wide selection of Right Angle Planetary Gearboxes covers most applications. Whether you are looking for low cost, or high precision, we should have a quality product at a great price! Please verify all dimensions when matching a gearbox to a specific motor, as critical dimensions will vary among series and manufacturers.
  • Sizes from 12mm to 90mm
  • Rated Voltage from 2.4 to 24VDC
  • Gear Ratios Ranging from 4:1 to 4096:1
  • Rated Torque (kg-cm) 19 to 180
  • Rated Torque (oz-in) 263 to 2500
  • Custom Versions are Available
SHAYANG YE Industrial Co. has designed one of the leading micro high-precision DC Inline gear motors. These DC gear motors were designed for OEM applications that offer a high value at a low cost. Along with the energy saving and noise reduction of the gear motor, has made it possible for Shayang to be one of the leader in innovation and design.
  • Frame Sizes available in 32mm and 42mm
  • Rated Voltage from 12 to 24VDC
  • Gear Ratios Ranging from 4:1 to 4096:1
  • Max Torque (kg-cm) 1.0 to 30
  • Max Torque (oz-in) 13 to 417
  • Custom Versions are Available
SHAYANG YE Industrial Co. has designed one of the leading micro high-precision DC right angle gear motors. These DC gear motors were designed for OEM applications that offer a high value at a low cost. Along with the energy saving and noise reduction of the gear motor, has made it possible for Shayang to be one of the leader in innovation and design.
  • Frame Sizes from 210mm to 360mm
  • Low Backlash, from 1 to 7 arcmin
  • Gear Ratios from 4 to 220
  • Rated Output Torque up to 13,508 Nm
  • High Step Accuracy, Resolution, Low Noise, and High Durability
  • Lifetime Lubrication, Long Design Life, Over 20,000 hrs
$5.00
The UGM Series is a low cost In-Line Planetary Helical Flanged Gearbox line that offers great prices. without sacrificing precision and quality. The UGM Series is designed for motion control applications requiring moderate backlash and stiffness. Features include backlash as low as 1 arcminute, 12 gear ratios for rated torque up to 13,508 Nm.
  • Frame Sizes from 210mm to 360mm
  • Low Backlash, from 1 to 7 arcmin
  • Gear Ratios from 4 to 220
  • Rated Output Torque up to 13,508 Nm
  • High Step Accuracy, Resolution, Low Noise, and High Durability
  • Lifetime Lubrication, Long Design Life, Over 20,000 hrs
The UGS Series is a low cost In-Line Planetary Helical Gearbox line that offers great prices. without sacrificing precision and quality. The UGS Series is designed for motion control applications requiring moderate backlash and stiffness. Features include backlash as low as 1
  • Frame Sizes from 42mm to 220mm
  • Low Backlash, From 1 to 7 arcmin
  • Gear Ratios from 3 to 100
  • Rated Output Torque up to 1,635 Nm
  • High Step Accuracy, Resolution, Low Noise, and High Durability
  • Lifetime Lubrication, Long Design Life, Over 20,000 hrs
$389.40
The AG Series is a low Cost In-Line Planetary Helical Gearbox line that offers great prices without sacrificing precision and quality. The AG Series is designed for motion control applications requiring moderate backlash and stiffness. Features include backlash as low as 1 arcminute, 19 gear ratios for rated torque up to 1,635 Nm, (model dependent), a precision clamping system and lifetime lubrication.
  • Frame Sizes from 60mm to 240mm
  • Low Backlash, From 1 to 7 arcmin
  • Gear Ratios from 3 to 100
  • Rated Output Torque up to 2,700 Nm
  • High Step Accuracy, Resolution, Low Noise, and High Durability
  • Lifetime Lubrication, Long Design Life, Over 20,000 hrs
$657.93
The PG Series is a low Cost In-Line Planetary Helical Gearbox line that offers great prices without sacrificing precision and quality. The AG Series is designed for motion control applications requiring moderate backlash and stiffness. Features include backlash as low as 1 arcminute, 15 gear ratios for rated torque up to 2,700 Nm, (model dependent), a precision clamping system and lifetime lubrication.
  • Frame Sizes from 100mm to 252mm
  • Low Backlash, from 1 to 7 arcmin
  • Gear Ratios from 3 to 100
  • Rated Output Torque up to 2,700 Nm
  • High Step Accuracy, Resolution, Low Noise, and High Durability
  • Lifetime Lubrication, Long Design Life, Over 20,000 hrs
The HG Series is a low cost In-Line Planetary Helical Gearbox line that offers great prices without sacrificing precision and quality. The HG Series is designed for motion control applications requiring moderate backlash and stiffness. Features include backlash as low as 1 arcminute, 16 gear ratios for rated torque up to 2700Nm
  • Frame Sizes from 111mm to 251mm
  • Low Backlash, from 1 to 7 arcmin
  • Gear Ratios from 3 to 100
  • Rated Output Torque up to 2,760 Nm
  • High Step Accuracy, Resolution, Low Noise, and High Durability
  • Lifetime Lubrication, Long Design Life, Over 20,000 hrs
  • Frame Sizes from 40mm to 120mm
  • Backlash as low as 2 arc-min
  • Gear Ratios from 3 to 512
  • Available in 1, 2 and 3 Stage Models
  • Designed for applications that are both space and cost restricted
$531.00
The GBPNR Series right angle planetary gearbox offers you the precision you need at the prices you want! This right angle planetary gearbox is designed with very low backlash for motion control, automation, and robotic applications requiring precise position

Frequently Asked Questions

What is the difference between a DC Motor and a Servo Motor?
The servo motor is actually an assembly of four things: a normal DC motor, a gear reduction unit, a position-sensing device (usually a potentiometer—a volume control knob), and a control circuit.

How do planetary gear reducers work?
All gear reducers work in a comparable fashion. The directions the gears rotate are dependent on the input direction and arrangement of the gears. For example, if the initial gear is rotating in a clockwise direction, the gear it engages will rotate counterclockwise. This continues down the line for all gears. The combination of different size gears and the number of teeth on each gear plays an important role in speed of the shaft and the output torque. High gear ratios allow for more output torque and lower speeds, while lower gear ratios allow for higher output speed and less output torque.

What is a Gear Reducer?
A gear reducer is a mechanical device utilized to increase the output torque or change the speed RPM of a motor. The motor shaft is attached to one end of the gear reducer and due to the configuration of the gear ratio, the torque and RPM is changed.

What materials are in a gear reducer?
The materials in a gear reducer are normally steel, iron, aluminum, and brass. Unlike many other gear reducers, spur gear reducers will be made of plastics such as polycarbonate or nylon.

What types of motors are compatible with Gear Reducers?
Various types of motors are compatible with Gear Reducers. For example: Brushless, Brush, Stepper, and AC motors are all compatible.

Why would you use a right angle gear reducer?
The main reason to use a right angle gear reducer is in low space applications. When there is not enough room to add an in-line gear reducer to a motor, the use of a right angle gear reducer will allow you to fit a much larger motor and gear reducer into a system or application.

My Gear Reducer is making loud vibration noises, how can I fix this?
Loud or Vibration noises can be due to many different sources. Improper installation, too high an input speed, overload, damaged or worn bearings, or improper lubrication can all cause noise in a gear reducer system. If you expect that there is a problem with the installation, check for loose bolts or misalignment between the gear reducer and motor. If you expect that the speed is too high, try lowering the input speed. If you expect that there is an overload, try decreasing the load or replacing the gear reducer with a larger-sized model. If the bearings are worn or damaged, you will need to replace them. If you expect there is a problem with lubrication apply the correct type of lubrication to the gear reducer. (You should consult the manufacturer regarding warranty or instructions on how to properly lubricate the gears.)

My Gear Reducer seems to be overheating, what can I do?
The exterior temperature of a gear reducer may become hot due to several reasons: Ambient temperature is above advised level. Efficiency of the gear reducer may be diminished if the ambient temperature is too high. You can either install a cooling systems such as a fan, or move the application to a more suitable location. Improper ventilation could also cause overheating. Ensure that there is an adequate amount of air flow in the area of the equipment to allow system cooling. Also, check the alignment of the input shaft of the motor to the gear reducer. Improper shaft alignment could be the cause of overheating. Poor lubrication could also be a culprit. Check these issues, and if you still are experiencing overheating, consult your manufacturer.

How many planet gear are in a gear reducer?
The amount of planetary gears in a gear reducer changes based on specific application requirements. Most planetary gear reducer have two or more planetary gears.

How do gear reducers work?
All gear reducers work in a comparable fashion. The directions the gears rotate are dependent on the input direction and arrangement of the gears. For example, if the initial gear is rotating in a clockwise direction, the gear it engages will rotate counterclockwise. This continues down the line for multiple gears. The combination of different size gears and the number of teeth on each gear plays an important role in the output torque and speed of the shaft. High gear ratios allow for more output torque and lower speeds, while lower gear ratios allow for higher output speed and less output torque.

What is the average lifetime of a right angle gear reducer?
An average life expectancy of a right angle gear reducer is approximately 20,000 hours.

What is the average efficiency of a right angle gear reducer?
The average efficiency of a right angle gear reducer is approximately 88~94%.

What is the average operating temperature of a right angle gear reducer?
The average operating temperature of a right angle gear reducer is -25° C - 90°C.

Do right angle gear reducers have low backlash?
Yes. Motion Marketplace offers a line of right angle gear reducers with backlash as low as 15 arc-min maximum.

What type of gears does a right angle gear reducer usually contain?
Bevel and worm gear reducers are mainly utilized in right angle applications. They offer high efficiency with low gear ratios. A straight bevel gear reducer with straight cut teeth are utilized in slow speed applications, whereas spiral bevel gear reducers with curved teeth are utilized in high performance, high speed applications. Worm gear reducers are also available with right angle configurations. They are able to sustain high shock loads, low in noise, maintenance-free but are less efficient than bevel gear reducers.

What are the advantages of using step motors?
Speed can be easily determined and controlled by remembering that speed equals steps per revolution divided by pulse rate. 2. A step motor can make fine incremental moves. 3. A step motor doesn't require encoder feed back (Open loop). 4. Non-cumulative positioning error. 5. Excellent low speed/high torque characteristics without gear reduction. 6. Holding torque of the step motor can be used to hold loads in stationary position without over heating. 7. Ability to operate on a wide speed range.