Quiet 3-to-1 Speed Reducers Using Traction Drive Technology Feature 98% Efficiency

EIN RMI speedreducer 400

May 21, 2019

Rolling Motion Industries (RMI) has released for production the next two in it’s series of highly efficient speed reducers. These 3-to-1 speed reducers use “game changing” traction drive technology. The MAR-17-1-3.1 and the MAR-23-1-3.1 Speed Reducers feature 98% efficiency and with only 6 moving parts they typically out last conventional gearboxes and speed reducers by a factor of 3. The MAR17-1-3.1 Speed Reducer is designed for input speeds up to 3600 rpm with 10 to 20 in/lbs of torque, and the MAR-23-1-3.1 Speed Reducer is also rated for speeds to 3600 rpm but with an input of 20 to 30 in/lbs of torque. As the output speed is reduced by a factor of 3 the output torque increases by a factor of 3.

Using an engineered traction fluid with a coefficient of friction of just 0.1 to 0.12 that cools and lubricates the traction drive these high efficiency speed reducers generate up to 72% less heat even after days of continuous operation. There is no slippage or lost motion between the input and output shafts even though there is no metal to metal contact as the traction fluid is continuously changing from liquid-to-solid-to-liquid as the driving and driven elements interface in the drive. Creating 38% lower dB at 3000 rpm than conventional gearboxes these people friendly speed reducers are ideal for use in medical equipment such as mobile hospital equipment and dialysis machines as well as pumps, blowers, fans, turbo and super chargers, conveyers, HVAC systems, and other power transmission and motion applications.

Having low vibration, and no torque losses from 10 to 3000 rpm, these speed reducers featuring traction drive technology lets a motor operate at peak efficiency while having a damping effect on a motor’s torque ripple. These revolutionary speed reducers are available with an optional overriding clutch. Incorporating standard NEMA mounting dimensions, these speed reducers can be easily integrated into new and existing applications.

Go HERE for more information

Related Articles


Latest Articles

  • Lever Connectors and Twist-Ons: How to Decide Which is Right for the Job

    Lever Connectors and Twist-Ons: How to Decide Which is Right for the Job

    There are many different types of wire connectors, and sometimes it can be hard for electricians to determine which one is best to use. Read More…

  • Winnipeg Information Bulletin: Low-Risk Voice, Data, Video & Security System Installations

    Winnipeg Information Bulletin: Low-Risk Voice, Data, Video & Security System Installations

    September 17, 2026 Certain types of installations may qualify for a low-risk voice, data, video (VDV) and security system electrical permit. For information related to regular VDV/security system installations, see winnipeg.ca/vdvsystems. Applications must be submitted through Permits Online. Electrical permits and inspections are needed for certain installations of security and similar alarm systems. This makes… Read More…

  • What Type of Outdoor Light Do I Need for My Application?

    What Type of Outdoor Light Do I Need for My Application?

    September 17, 2026 By Stanpro The right outdoor light starts with the space you need to illuminate and how that space is used. For commercial projects, parking lots and large exterior areas point toward area lights; entrances and building perimeters toward wall-mounted or security lighting; signs, facades and targeted areas toward flood lights; pathways toward… Read More…

  • Alberta Employers and Tradespeople Share their Perspectives

    Alberta Employers and Tradespeople Share their Perspectives

    September 16, 2026 In Alberta’s skilled trades labour market employers and tradespeople are facing growing pressure from tariffs, rising costs, hiring challenges and labour mobility barriers. CAF-FCA’s new report, Hiring, Mobility and Needed Supports: Alberta Employers and Tradespeople Share Their Perspectives, takes a closer look at what’s happening on the ground. Based on surveys of… Read More…


Changing Scene

  • Federal Government Invests in Rural Transit Projects for Communities Across British Columbia

    Federal Government Invests in Rural Transit Projects for Communities Across British Columbia

    October 1, 2026 Rural and remote communities in British Columbia, including the Village of Pemberton, will receive a boost for transit projects following an investment of more than $10.6 million from the federal government. These projects were announced by Patrick Weiler, Member of Parliament for West Vancouver–Sunshine Coast–Sea to Sky Country, who was accompanied by… Read More…

  • Manitoba Sees Strong Growth in Apprenticeship Training and Certification

    Manitoba Sees Strong Growth in Apprenticeship Training and Certification

    October 1, 2026 The Manitoba government is highlighting significant progress in apprenticeship training and certification, reinforcing its commitment to building a skilled and inclusive workforce, Business, Mining, Trade and Job Creation Minister Jamie Moses, Advanced Education and Training Minister Renée Cable and Public Service Delivery Minister Mintu Sandhu announced today. “We certified more journeypersons this… Read More…

  • New PEI Online Registry Helps Tradespeople Work Across Canada

    New PEI Online Registry Helps Tradespeople Work Across Canada

    September 1, 2026 The Government of Prince Edward Island has launched an online registry of skilled tradespeople that makes it easier for employers to verify credentials and supports labour mobility across the country. The online registry will help employers, contractors and homeowners verify whether a person holds a Prince Edward Island Certificate of Qualification or Red… Read More…

  • Bell AI Fabric Provides Construction Update in Saskatchewan

    Bell AI Fabric Provides Construction Update in Saskatchewan

    October 1, 2026 More than 500 people are working on the 300 MW data centre site in the Rural Municipality (RM) of Sherwood, with all four building shells taking shape and more than 30 local firms supporting the project. Bell Canada and the Government of Saskatchewan marked major construction milestones at the 300-megawatt Bell AI… Read More…