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gearboxes and speed reducers
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Selecting the right gearbox or speed reducer is a critical decision for any mechanical project, as it directly dictates the torque output and rotational speed of your machinery. From precision planetary gears for CNC routers to heavy-duty worm reducers for industrial motors, the options vary significantly in efficiency and load capacity. This selection focuses on versatility, mechanical reliability, and compatibility with common motor standards to help you optimize your drive system.
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Gear Reduction Box, Reduction Gearbox with Internal Clutch 13Hp Reducer with 2:1 Speed Reduction Rotatable Oil Plug for H0nda GX270

Gear Reduction Box, Reduction Gearbox with Interna...

65.99USD
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XUFOPLY - Gear Reduction Box, Reduction Gearbox with Internal Clutch 13Hp Reducer with 2:1 Speed Reduction Rotatable Oil Plug for H0nda GX270
#1
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40.00/100
  • โš™๏ธใ€ DURABLE MATERIAL ใ€‘This reducer is made of iron and aluminum, which is very strong and durable. It can resist high temperatures .
  • โš™๏ธใ€ HIGH-PRECISION ใ€‘Each part of this reducer is carefully machined for a compact structure and high precision. This reducer achieves a 1/2 deceleration effect. Reducing the speed can increase the output torque at the same time.
$65.99
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YIDOFENG - YIDOFENG Worm Gear Gearbox,NMRV030 Worm Gear Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor,RV030 Output Bore/Hole 14mm Shaft (Pitch-Row: 47mm) (10:1)
#2
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  • ใ€Parameterใ€‘Model:NMRV030 (small), type: worm gear, speed ratio: 20:1, input hole size: 11 mm,0.43", output hole size: 14 mm,0.55", , input flange model: NEMA23, material of the service housing: aluminium alloy housing; application: suitable with omotor / step. Motor; Product Color: sliver;Pitch-Row: 47mm
  • ใ€Featuresใ€‘1.) The worm gear is made of ductile cast iron QT-400, which is well made and easy to carry. 2) The worm gear bar is made of 20CR round steel (carbonated and scared heat treatment, stable transmission and high efficiency), 3.) The reduction housing is made of high-quality ADC12 aluminium die-cast housing, strong sealing, small size, light weight, space-saving installation, not easy to corrode.
$42.00
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YIDOFENG - YIDOFENG Worm Gear Gearbox,NMRV030 Worm Gear Speed Reducer Square Type for Nema23 Stepper Motor/Servo Motor,RV030 Output Bore/Hole 14mm Shaft (Pitch-Row: 47mm) (50:1)
#3
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  • ใ€Parameterใ€‘Model:NMRV030 (small), type: worm gear, speed ratio: 20:1, input hole size: 11 mm,0.43", output hole size: 14 mm,0.55", , input flange model: NEMA23, material of the service housing: aluminium alloy housing; application: suitable with omotor / step. Motor; Product Color: sliver;Pitch-Row: 47mm
  • ใ€Featuresใ€‘1.) The worm gear is made of ductile cast iron QT-400, which is well made and easy to carry. 2) The worm gear bar is made of 20CR round steel (carbonated and scared heat treatment, stable transmission and high efficiency), 3.) The reduction housing is made of high-quality ADC12 aluminium die-cast housing, strong sealing, small size, light weight, space-saving installation, not easy to corrode.
$42.00
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CNCTOPBAOS - CNCTOPBAOS 120W Worm Gear Motor RV30 Reducer Ratio 1:40 with Speed Governor Controller,Adjustable Variable Gear Motor CW/CCW 90-1600RPM 110V,18N.m High Torque Electric Gearbox 14mm Output Shaft
#4
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  • Specifications: Power:120W; Rated Voltage:110V AC; Speed:90-1300rpm 110V/50HZ / 90-1600rpm 110/60HZ; Reduction Ratio:1:40 40K; Torque:18N.m; Output Shaft diameter:14 mm/0.55 inch ;Worm gearbox Model: NMRV30
  • High Quality and Durable: The gear reduction motor is made of high-strength alloy die-casting,with a high-quality alloy steel casing,high hardness,high rigidity,and long service life; Adopting thick all copper coils, with low heat generation, good electrical performance, more stable and smooth motor power output, and a lifespan 10 times that of ordinary coils
$110.00
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JIAWANSHUN - 250W Variable Speed Motor with Gearbox and Bracket, 0-270RPM(5K) High Torque AC Gear Reducer Motor for Industry, Robotics, Automotive, Production Line
#7
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  • ใ€High Torque Performanceใ€‘With up to 400Nm of torque, this 250W AC motor is designed for heavy machinery and precision operations, providing a strong and stable power output. Shaft diameter 15mm
  • ใ€Adjustable Speed Designใ€‘The reduction ratio is 1:5 (5K), the motor speed range is 0-270RPM, equipped with variable speed controller, can be adjusted to meet different needs
$148.00
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TOSEASTARS - Planetary Gearbox Reducer Gear Ratio 5:1 High Precision Backlash 7 arc-min 4000rpm Speed Reducers for 200W 400W 60mm Servo Motor 14mm/11mm Shaft, Gearheads for CNC Lathe Machine Router Benchtop
#8
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  • Planetary Gearbox for 60mm Servo Motor. Frame Size: 60x60 mm; Output Shaft: 14mm; Input Shaft: 11mm and 14mm; adapter motors: Fit for 14mm and 11mm Shaft 60mm servo Motor 200w 400w 600w. Speed Reducer Body length: 80mm.
  • Servo Motor Planetary Gearboxes Backlash Precision: <= 7 Arcmin, Full load efficiency: 96%, max input speed:8000rpm, rated input speed: 4000 rpm, Torsion rigidity: 1.8Nm/arcmin.
$49.99
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Our Expert Verdict: gearboxes and speed reducers

AI
This list provides a comprehensive range of options, from budget-friendly DIY components to robust industrial reducers, ensuring a reliable solution for almost any torque requirement.

Market Overview: gearboxes and speed reducers

AI
The market is shifting toward compact, high-precision modular gearheads that allow users to easily swap ratios without replacing the entire motor assembly.

Buying Guide: gearboxes and speed reducers

AI
When shopping for a speed reducer, prioritize the input shaft diameter, the desired reduction ratio, and the maximum torque load your application requires to avoid premature mechanical failure.

Selection Criteria

Products were selected based on mechanical specifications, user feedback regarding durability, compatibility with Nema motors, and overall value for the price.

Budget Advice

AI
Entry-level DIY modules are very affordable, while mid-range industrial worm reducers offer a balance of cost and durability. Premium planetary gearboxes cost more due to higher precision.

Conclusion: gearboxes and speed reducers

AI
Finding the perfect balance between torque and speed is the key to a successful build. Whether you are automating a production line or building a DIY robot, the right reducer makes all the difference. Explore our full list to find the best match for your specifications.

Frequently Asked Questions

AI
Worm gears provide high reduction ratios in a compact space and are often self-locking, meaning the load cannot drive the motor backward. Planetary gearboxes offer higher efficiency, precision, and can handle higher speeds with less backlash.
The ratio depends on your target output speed and required torque. A higher ratio (e.g., 50:1) significantly reduces speed while increasing torque, whereas a lower ratio (e.g., 5:1) maintains more speed but provides less mechanical advantage.
Most industrial gearboxes require periodic lubrication to prevent wear and overheating. Always check if the unit comes pre-lubricated or if it has a rotatable oil plug for easy maintenance.

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Gear Reduction Box, Reduction Gearbox with Internal Clutch 13Hp Reducer with 2:1 Speed Reduction Rotatable Oil Plug for H0nda GX270
๐Ÿฅ‡ #1

Gear Reduction Box, Reduction Gearbox wi...

65.99 USD
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