Product Selection Guide AC Servo - 2024 Edition
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MELSERVO-J5 Series Direct Drive Motor

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MELSERVO-J5 Series Direct Drive Motors

TM-RG2M

Low-profile flange type
TM-RG2M Series
Low-profile table type
TM-RU2M Series

Low-profile for space and weight saving
Motor outer diameter: φ130 mm, φ180 mm, φ230 mm

TM-RFM

High-rigidity
TM-RFM Series

High torque for high-weight capacity
Motor outer diameter: φ130 mm, φ180 mm, φ230 mm, φ330 mm

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Basic Performance

High performance with the latest technologies

Our latest magnetic design and winding technologies enable high torque density. In addition, extremely smooth rotation is achieved by the minimized torque ripple.

Compact and low-profile design

Due to high level of structural design technology, compact and low-profile design is achieved. This design enables a small mounting space and a low center of gravity.

High-resolution absolute position encoder

The direct drive motors are equipped with a high-resolution absolute position encoder (1,000,000 to 4,000,000 pulses/rev) as standard. High-accuracy machines are achieved.

Hollow shaft diameter range: ø20 mm to 104 mm

The motors are equipped with a large hollow shaft resulting from using bearing and encoder with large diameter. It allows cables and air tubing to pass through.

Enhanced environmental resistance

The direct drive motors feature environmental resistance, designed for an altitude of 2000 m and an ambient temperature of 60 ℃. *1

  • *1. Derate the speed/torque when using the direct drive motors at an altitude exceeding 1000 m or at high ambient temperatures.
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Higher Machine Performance

For higher machine performance

  • Suitable for low-speed and high-torque operations.
  • High-accuracy positioning is achieved because the motors are directly coupled to a load.

For easier use

  • Since mechanical transmission is no longer required, no backlash and no abrasion occurs, enabling smooth operation with less audible noise, a clean system, and easy maintenance.
  • Less components are required for the system.

For flexible machine configurations

  • A simple, compact, and high-rigid machine is achieved.
  • Machine stability is enhanced due to the low-profile design and a low center of gravity.
  • The motors have an inner rotor with hollow shaft that allows cables and pipes to pass through.

[No mechanical transmission contributing to no warp or distortion]

No mechanical transmission contributing to no warp or distortion

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Flange Type (with Pilot) and Table Type (with Positioning Pin Holes)

Flange Type (with Pilot) and Table Type (with Positioning Pin Holes)

Two mounting types are selectable according to the mounting method to a machine.

  • TM-RG2M series: flange type (with pilot)
    Position with the pilot and fix with bolts.
  • TM-RU2M series: table type (with positioning pin holes)
    Position with the positioning pin holes and fix with bolts.

Increased Rated and Maximum Torques

Increased Rated and Maximum Torques

The rated and maximum torques of TM-RG2M004E30/TM-RU2M004E30 are increased when a larger-capacity servo amplifier is combined.
For example, when MR-J5-40G(-RJ) servo amplifier is used instead of MR-J5-20G(-RJ), the rated and maximum torques are increased as follows: Rated torque: from 4.5 N·m to 6 N·m. Maximum torque: from 13.5 N·m to 18 N·m.

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