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Megatorque Motor PS Model (M-PS3015/PS3030/PS3060/PS3090)

PS3 / NSK (Official website) / Listed on page 4 of the document

Hollow-structure direct drive motor with an outer diameter of φ150 mm. Built-in absolute position detector supports high-precision positioning in the medium torque range.

Last verified: (date the content was verified against the source document)

Megatorque Motor PS Model (M-PS3015/PS3030/PS3060/PS3090) on page 4 of NSK "Megatorque Motor 製品資料（NSK）"
Source: NSK「Megatorque Motor 製品資料（NSK）」page 4
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Specifications

Outer diameter 150 mm
Maximum torque 15 / 15 to 90 / 90 N·m
Rated torque 5 / 5 to 30 / 30 N·m
Maximum Rotational Speed 10 / 4 to 5 / 1.5 s-1
Motor height 85 to 170 mm
Hollow diameter 56 mm
Position detection resolution 2,621,440 counts/revolution
Absolute positioning accuracy 60 (±30) arc-sec
Repeatability of positioning ±2 arc-sec
Permissible axial load 2000 N
Permissible radial load 1700 N
Allowable moment load 42 N·m
Mass 5.5 to 13.8 kg

How to choose Direct Drive Motors

Points to check when selecting, with the values for this product (Megatorque Motor PS Model (M-PS3015/PS3030/PS3060/PS3090)).

  1. 1. Select a rated torque suited to continuous load

    This product: Rated torque 5 / 5 to 30 / 30 N·m

    Confirm that the effective torque over the operating cycle (root mean square of friction and acceleration/deceleration torque from the load) is at or below the rated torque. Rated torque of the listed products is 2 to 45 N·m. A small margin causes the motor to overheat and may lead to a stop by overload protection.

  2. 2. Check the maximum torque required for acceleration and deceleration

    This product: Maximum torque 15 / 15 to 90 / 90 N·m

    For applications requiring positioning in a short time, confirm that the acceleration torque, calculated from the load inertia and angular acceleration, falls within the maximum torque. Listed products range from 6 to 135 N·m, with maximum torque set at about three times the rated torque. Also confirm that the load is within the permissible load inertia moment range.

  3. 3. Check that outer diameter and height fit the equipment

    This product: Outer diameter 150 mm

    Outer diameter is 100 to 286 mm and height from the mounting surface is 35 to 170 mm. Where space under the table is limited, a low-profile type or a low center-of-gravity inner rotor type is suitable. Models with higher torque tend to have larger outer diameter and mass (2.4 to 48 kg), so also check the strength of the base structure.

  4. 4. Match the hollow bore to the cables and piping

    This product: Hollow diameter 56 mm

    When passing sensor cables or air piping on the rotary table through the hollow bore, ensure the bore diameter accommodates the outer dimensions of the cable bundles and fittings. The hollow bore of listed products is 32 to 56 mm. If cables will twist with rotation, also consider the permissible rotation angle and the use of a rotary joint.

  5. 5. Verify permissible loads applied directly to the rotor

    This product: Allowable moment load 42 N·m

    Because the workpiece or jig is mounted directly on the rotor, confirm that axial load (1000 to 9500 N), radial load, and moment load (20 to 200 N·m) are within permissible values. Moment load tends to be the limiting factor for eccentric or overhanging loads.

  6. 6. Compare accuracy, speed, and environmental specifications

    Listed products have a repeatability of ±2 arc-sec, an absolute positioning accuracy of 60 to 70 arc-sec, and a maximum rotational speed of 2 to 10 s⁻¹. For applications that must hold position during power loss, such as vertical axes, select a type with a brake; for environments with water, oil, or dust, select an environment-resistant type equivalent to IP66M.

This guide was written by AI based on the listed products' documents and specification items.

About Direct Drive Motors and all products

Description

Outer diameter φ150 mm, maximum output torque 15 to 90 N·m. Hollow bore φ56 mm. Resolution 2,621,440 counts/revolution, repeatability ±2 arc-sec. Compliant with UL and CE.

Features

  • Compliant with UL standards and CE marking
  • Built-in absolute position detector
  • Hollow structure
  • Maintenance-free

Applications

  • Inspection equipment
  • Rotary transfer devices
  • Indexing devices

FAQ

Q. What are the maximum torque and rated torque of the Megatorque Motor PS3 Series (M-PS3015/PS3030/PS3060/PS3090)?
A. Maximum torque is 15 / 15 to 90 / 90 N·m, and rated torque is 5 / 5 to 30 / 30 N·m.
Q. What are the external dimensions and hollow bore diameter of the Megatorque Motor PS3 Series (M-PS3015/PS3030/PS3060/PS3090)?
A. The outer diameter is 150 mm, the motor height is 85 to 170 mm, and the hollow bore diameter is 56 mm.
Q. What are the positioning accuracy and resolution of the Megatorque Motor PS3 Series (M-PS3015/PS3030/PS3060/PS3090)?
A. The position detection resolution is 2,621,440 counts/revolution, the absolute positioning accuracy is 60 (±30) arc-sec, and the repeat positioning accuracy is ±2 arc-sec.
Q. What are the allowable loads and mass of the Megatorque Motor PS3 Series (M-PS3015/PS3030/PS3060/PS3090)?
A. The allowable axial load is 2000 N, the allowable radial load is 1700 N, and the allowable moment load is 42 N·m. The mass is 5.5 to 13.8 kg.
Q. What applications is the Megatorque Motor PS3 Series (M-PS3015/PS3030/PS3060/PS3090) suited for?
A. It can be used in inspection equipment, rotary transfer devices, and indexing devices.

Written by AI based on the content of the source documents.

Source documents

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