Offset / Parallel Gearmotors
Reviewed by: Jon Lowy, consulting engineer
Description
Offset or parallel gearmotors are designed to provide mechanical power transmission with the output shaft's axis parallel to, but not concentric with, the axis of motor rotation. This configuration is often used to optimize space-saving drive requirements, allowing for efficient power delivery in compact spaces.
Working Principle
Offset or parallel gearmotors operate by aligning the output shaft parallel to the motor's rotational axis, which allows for a more compact design compared to in-line configurations. This parallel arrangement facilitates efficient torque transmission and can be particularly useful in applications where space constraints are a concern. The design typically includes precision helical gearing, which offers smoother and quieter operation due to a larger tooth surface area. This gearing system, combined with enhanced bearings, ensures higher stiffness, greater load capacity, and longer operational life, making these gearmotors reliable and effective for various engineering applications.
Applications
Offset or parallel gearmotors are commonly used in scenarios where space is limited but high torque is required. Specific examples include conveyor systems, where the compact design allows for integration into tight spaces while still delivering the necessary power to move heavy loads. They are also used in packaging machinery, where precise and reliable motion control is essential, and in material handling equipment, where their robust design supports the movement of goods efficiently.
Advantages over other Gearmotors
One of the primary advantages of offset or parallel gearmotors is their space-saving design, which makes them ideal for applications with limited installation space. The precision helical gearing provides smoother and quieter operation compared to other gear configurations, such as spur gears. Additionally, the enhanced bearing system offers greater load capacity and longer life, which can be advantageous over other gearmotor types that may not provide the same level of durability and performance.
Limitations
Despite their advantages, offset or parallel gearmotors can have limitations, such as potentially higher initial costs due to their complex design and precision components. Maintenance can also be more challenging due to the inaccessibility of certain parts, which may require more frequent servicing to ensure optimal performance.
Considerations
When selecting offset or parallel gearmotors, it is important to consider factors such as initial costs, which can be higher due to the precision engineering involved. Operating expenses should also be evaluated, as the efficiency of these gearmotors can impact energy consumption. Durability is a key consideration, with the enhanced bearing systems providing longer life but potentially requiring more maintenance. Accuracy in operation is generally high, but replacement and maintenance costs should be factored into the overall cost of ownership to ensure that the gearmotor remains a cost-effective solution over its operational lifespan.
from ElectroCraft
Hansen offers an inexpensive, 1.4" diameter DC brush motor on our 2" diameter spur gearbox. This motor is offered in voltages up to 24 volts DC along with several optional features. 4 ratios are offered, 12:1, 48:1, 192:1 and 768:1. The 2" gearbox motor life is rated at 1000 hours continuous duty... [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- Commutation: Brush
- Motor Type: DC Motor
- DC Construction: Permanent Magnet
from Bodine Electric Company
33A7 Motor provides high starting torque, adjustable speed, and predictable performance under a range of operating conditions. 12V, 24V, 90V & 180V (SCR Rated) and 130VDC winding options. Class F. Totally enclosed IP-40 rating. IP-44 with optional t-box or boot kit installed. Hollow shaft... [See More]
- Shaft Orientation: Right Angle; Hollow; Offset / Parallel
- DC Voltage Range: 130.0
- Motor Type: DC Motor
- Output Power: 0.3333
from ElectroCraft
Hansen offers our 1.6" diameter DC brush motor on a 2" diameter spur gearbox. This motor is offered in a wide range of operating voltages along with several optional features. Optional features offered include encoders, voltages, noise suppressors, custom shafting, custom leads and terminations,... [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- Commutation: Brush
- Motor Type: DC Motor
- DC Construction: Permanent Magnet
from ElectroCraft
Hansen offers our 2.1" diameter DC brush motor on our 2" diameter spur gearbox. This motor package is offered in a wide range of operating voltages and with 4 gear ratio options, 12:1, 48:1, 192:1 and 768:1. Optional features include encoders, noise suppressors, custom shafts, custom leads and... [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- Commutation: Brush
- Motor Type: DC Motor
- DC Construction: Permanent Magnet
from Autotrol Corporation
The 200 motor is a permanent magnet gearmotor utilizing a cylindrical barium ferrite 2 pole field magnet. A three bar commutator and a choice of carbon brushes or bifurcated silver alloy brushes provide long life, quiet operation and low starting voltage. The three slot rotor is supported by... [See More]
- Shaft Orientation: In-line; Single-ended; Offset / Parallel
- Commutation: Brush
- Motor Type: DC Motor
- DC Construction: Permanent Magnet
from Johnson Electric Group
DC Gearmotors combine Johnson Electric ’s wide range of DC motors with an increasing range of gearboxes from the Saia and Johnson Motor brands. Torque ratings to 600 cNm are available in our growing range of package platforms and gear ratios which enables customers to use these subsystems in a... [See More]
- Shaft Orientation: Offset / Parallel
- Standard DC Voltage: 6V; 9V; 12V
- Motor Type: DC Motor
- DC Voltage Range: 4.5 to 12.0
from Stober Drives, Inc.
The "F" Series Gearmotor is a co-axial geared motor with a large shaft-center distance. It is well-suited as travel drive. Four output options are available: solid shaft, hollow, backlash free or wobble-free bushings, and metric or stainless shaft or quill. [See More]
- Shaft Orientation: Offset / Parallel
- Continuous Torque: ? to 6089.0
- Motor Type: AC Servo
- Gearbox Ratio: 4.3 to 221
from Kollmorgen Corporation
With the Gear Motor AKM41E-BF06 in the Washdown version especially made for rotation applications in the packaging industry. The main advantages of the ready-to-install drive units with a consistent, hygienic design include: significantly reduced cleaning times due to smooth and water-repellant... [See More]
- Shaft Orientation: Hollow; Offset / Parallel
- Gearbox Ratio: 31.5
- Continuous Torque: 451.3
- Units: Metric
from Radicon
Series F Shaft Mounted geared motor comes in 11 sizes with an Input Power up to 110 Kw (147 Hp) and an Output Torque up to 16,500 Nm (146,000 lb.in). Gear Ratios are available 100:1 for double reduction and 5,600:1 in combined units. The Series F geared motor is primarily designed as a shaft mounted... [See More]
- Shaft Orientation: Offset / Parallel
- Continuous Torque: 146017.7
- Motor Type: AC Motor
- Gearbox Ratio: 5 to 5600
from Venture Mfg. Co.
Venture ’s 8500 series motor gearbox has been an industry standard for years. Our standard unit is available in three gear ratios – 18:1, 28:1 and 58:1 and with a multitude of options, we ’re sure to have one that meets your needs …. Features: 20% Duty Cycle typical (1on/4... [See More]
- Shaft Orientation: Offset / Parallel
- Gear Type: Spur (optional feature)
- Motor Type: DC Motor
- Gearbox Ratio: 18 to 58
from MTC Industries & Research Carmiel Ltd.
The CSA-0508 was developed to be used in airborne applications. It consists of a 3 phase bipolar brushless DC servo motor* with nominal operational voltage of 48 VDC, a reduction transmission gear and a one time pyrotechnically activated clutch. It does not include electronics. [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- Commutation: Brushless
- Motor Type: DC Motor
- Standard DC Voltage: 48V
from Hymark/Kentucky Gauge
Modular products for the optimum flexibility. Gear ration 3~180. Impact size and structure with precision gear process ensure low vibration and noise. Aluminum housing benefits heat diffusion. Output 100W (1/8Hp) to 750W (1Hp). Wide range of applications with brake and various AC power supply... [See More]
- Shaft Orientation: In-line; Single-ended; Offset / Parallel
- Output Power: 0.1250 to 1
- Output Power: 1/4 HP; 300 W; 1/2 HP; 1 HP
- Motor Shape: Cylindrical Body
from CGI, Inc.
Garhead Ambient Operating Temperature Range -60 ˚F to +250 ˚F. Motor is rated to 265 ˚F. Molded Composite Housing (Max. Temp. 420 ˚F). Gears are High-Strength Heat-Treated Steel. Composite Bushings throughout Gearhead. Input/Output shafts turn in the same direction. [See More]
- Shaft Orientation: Offset / Parallel
- Stepper Construction: Permanent Magnet
- Motor Type: Stepper Motor
- Current per Phase: 1.25 to 4.7
from Anaheim Automation, Inc.
High torque, ideal for low-precision applications, can be customized [See More]
- Shaft Orientation: Single-ended (optional feature); Double-ended (optional feature); Offset / Parallel
- Number of Leads: 8
- Motor Type: Stepper Motor
- Continuous Current: 2.1
from TiMOTION Technology
The TGM4 series is TiMOTION ’s compact size gear motor. It was designed primarily for ergonomic applications like height adjustable workstations and tables, but can be used in many other applications. This economical product allows for fast, smooth and quiet adjustment of built-in spindles... [See More]
- Shaft Orientation: In-line; Single-ended; Offset / Parallel
- Standard DC Voltage: 24V
- Motor Type: DC Motor
- DC Voltage Range: 24.0
from Demag Cranes & Components
Demag type A offset gear motors are available in 9 sizes with shaft-mounted gearboxes and torque bracket and foot or flange-mounted configuration. They offer the optimum solution for space-saving drive requirements due to their compact design. Gearbox size A10 is a two-stage unit, all other units... [See More]
- Shaft Orientation: Single-ended; Hollow (optional feature); Offset / Parallel
- AC Construction: Induction
- Motor Type: AC Motor
- AC Voltage & Frequency: 208-230/240V 60Hz; 460/480V/60Hz; 575/600V/60Hz (optional feature); International Voltages (optional feature)
from Groschopp, Inc.
Low noise, long life. Groschopp AC Motors are constructed with class "H" insulation components allowing for running temperatures up to 180 degrees C. High-efficiency synthetic oil lubricant. Hardened output shaft. Ball and roller bearings. Multiple mounting positions. Rugged cast housing [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- AC Voltage & Frequency: 208-230/240V 60Hz
- Motor Type: AC Motor
- Phase: Three-phase
from Transmotec
Spur gear dc motors in customized or standard configurations. Standard diameters between 27 mm and 43 mm and power ratings up to 40W. Magnetic hall sensor encoders and integrated electric noise reduction filters are availalbe as standard. The gear wheels are made in steel and are machine... [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- Commutation: Brush
- Motor Type: DC Motor
- Standard DC Voltage: 12V; 24V
from ABM DRIVES INC.
Compact design - › Small space requirement High grade gearing - › Low noise and long life time Large variety of possible mounting optionsMaintenance-free [See More]
- Shaft Orientation: Offset / Parallel
- Phase: Single-phase (optional feature); Three-phase (optional feature)
- Motor Type: AC Motor
- Continuous Torque: 442.5 to 20354.0
from SONCEBOZ Corporation
SONCEBOZ slimline stepper motors are flat actuators for instrument clusters. They present motion smoothness, low noise, robustness and cost efficiency. Sonceboz stepper motors have become a worldwide standard in this industry for instrument clusters. [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- Stepper Construction: Permanent Magnet
- Motor Type: Stepper Motor
- Standard DC Voltage: 6V
from Autotrol Corporation
The 250 motor is a permanent magnet gearmotor utilizing a cylindrical barium ferrite 2 pole field magnet. Carbon brushes provide long life, quiet operation and low starting voltage. The rotor is supported by permanently lubricated sintered bronze bearings. The 250 motor is availble in a wide range... [See More]
- Shaft Orientation: In-line; Single-ended; Offset / Parallel
- Commutation: Brush
- Motor Type: DC Motor
- DC Construction: Permanent Magnet
from Venture Mfg. Co.
This versatile, motorized standard duty combination worm drive and spur gear driven gearbox can be produced with a variety of output shaft configurations and is also available with manual crank capabilities. Features: 20% Duty Cycle typical (1on/4 off). 12, 24, 36, 90 and 120vdc. Manual crank. Metal... [See More]
- Shaft Orientation: Double-ended; Offset / Parallel
- Continuous Current: 30
- Motor Type: DC Motor
- Continuous Torque: 324.0
from Groschopp, Inc.
Low noise, long life. Groschopp AC Motors are constructed with class "H" insulation components allowing for running temperatures up to 180 degrees C. High-efficiency synthetic oil lubricant. Hardened output shaft. Ball and roller bearings. Multiple mounting positions. Rugged cast housing [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- AC Voltage & Frequency: 208-230/240V 60Hz
- Motor Type: AC Motor
- Phase: Three-phase
from Autotrol Corporation
Permanent magnet synchronous motor used in applications requiring up to 125 ounce-inches (9,000 gm.-cm.) of dynamic torque. Cut metal or molded plastic gear trains, different output shafts and clutches offer flexibility to meet a variety of application requirements. Our newest gearmotor for timing... [See More]
- Shaft Orientation: In-line; Single-ended; Offset / Parallel
- AC Construction: Synchronous
- Motor Type: AC Motor
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz
from Venture Mfg. Co.
This versatile, heavy duty combination worm drive and spur gear driven gearbox can be used for virtually any application imaginable where strength and reliability are needed.. Features: 12 vdc. 20% Duty Cycle typical (1on/4 off). Manual crank. Metal Gears. Lifetime lubrication. Cast aluminum... [See More]
- Shaft Orientation: Double-ended; Offset / Parallel
- Continuous Current: 30
- Motor Type: DC Motor
- Continuous Torque: 960.0
from Groschopp, Inc.
Low noise, long life. Groschopp BLDC Motors are rated for 130 degrees C continuous internal temperature. High-efficiency synthetic oil lubricant. Hardened output shaft. Ball bearings. Multiple mounting positions. Rugged cast housing [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- Commutation: Brushless
- Motor Type: DC Motor
- AC Motor Features: Reversible (optional feature)
from Autotrol Corporation
Permanent magnet synchronous motor used in applications requiring up to 125 ounce-inches (9,000 gm.-cm.) of dynamic torque. Cut metal or molded plastic gear trains, different output shafts and clutches offer flexibility to meet a variety of application requirements. Our most popular low cost... [See More]
- Shaft Orientation: In-line; Single-ended; Offset / Parallel
- AC Construction: Synchronous
- Motor Type: AC Motor
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz
from Venture Mfg. Co.
The M-9000 motor gearbox is available with or without a switch and wire harness. It is used to power most landing gear systems and can easily be added if a motor did not come as OEM equipment. For heavy coaches or to add the ability to level, Dual motors can be added to virtually any system. [See More]
- Shaft Orientation: Offset / Parallel
- Continuous Current: 25 to 30
- Motor Type: DC Motor
- Continuous Torque: 150.0
from Groschopp, Inc.
Low noise, long lifeGroschopp DC Motors are constructed with class "B" insulation components allowing for running temperatures up to 130 degrees C. High-efficiency synthetic oil lubricant. Hardened output shaft. Ball and roller bearings. Multiple mounting positions. Rugged cast housing [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- AC Motor Features: Reversible (optional feature)
- Motor Type: DC Motor
- Standard DC Voltage: 12V
from Autotrol Corporation
A powerful permanent magnet synchronous motor in a very compact package. Delivers 500 ounce-inches of torque at 1 RPM. Speeds available from 1/2 RPM to 240 RPM. Suitable for many instrument and industrial applications. AC Gear Motor - Model 500 Features. Compact package. High torque at low profile. [See More]
- Shaft Orientation: In-line; Single-ended; Offset / Parallel
- AC Construction: Synchronous
- Motor Type: AC Motor
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz; International Voltages
from Groschopp, Inc.
Low noise, long lifeGroschopp DC Motors are constructed with class "B" insulation components allowing for running temperatures up to 130 degrees C. High-efficiency synthetic oil lubricant. Hardened output shaft. Ball and roller bearings. Multiple mounting positions. Rugged cast housing [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- AC Motor Features: Reversible (optional feature)
- Motor Type: DC Motor
- Standard DC Voltage: 12V
from Autotrol Corporation
Autotrol ’s New High Performance Gear Motor. Permanent magnet synchronous gear motor used in applications requiring up to 525 ounce inches of dynamic torque. It is available with either molded plastic gearing or powdered metal and heat treated gears. There are four standard output shaft... [See More]
- Shaft Orientation: In-line; Single-ended; Offset / Parallel
- AC Construction: Synchronous
- Motor Type: AC Motor
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz
from Groschopp, Inc.
Low noise, long lifeGroschopp DC Motors are constructed with class "B" insulation components allowing for running temperatures up to 130 degrees C. High-efficiency synthetic oil lubricant. Hardened output shaft. Ball and roller bearings. Multiple mounting positions. Rugged cast housing [See More]
- Shaft Orientation: Single-ended; Offset / Parallel
- AC Motor Features: Reversible (optional feature)
- Motor Type: DC Motor
- Standard DC Voltage: 12V
from Autotrol Corporation
Instrument grade permanent magnet synchronous motor is electrically reversible and is precision built for long life applications. Available in speeds from 1 RPM to 240 RPM. Also available without gearhead as direct drive motor...consult factory. AC Gear Motor - Model 550 Features. Electrically... [See More]
- Shaft Orientation: In-line; Single-ended; Offset / Parallel
- AC Construction: Synchronous
- Motor Type: AC Motor
- AC Voltage & Frequency: 24 V; 120V/60Hz; 208-230/240V 60Hz; International Voltages