Why the 60ZWS02 Frameless Motor is the First Choice for Quadruped Robots？

If you are building a quadruped or any legged robot, you already know that joints are everything. The goal is always the same: less weight, more power.

As a direct manufacturer, MAINTEX developed the 60ZWS02 Frameless Motor to be the ideal solution for this challenge. Simply put, it’s compact, packs a huge punch, and is a far more practical option than foreign brands like TQ in terms of price and availability.

MAINTEX vs. TQ: What’s the Difference?

Many of our customers used to look at TQ as the standard. However, after switching to MAINTEX, the advantages become clear:

Better Pricing: We are the original manufacturer. By shipping directly from our factory, we cut out the middleman, making our prices much more competitive than TQ.

Faster Turnaround: Based in China, we maintain steady stock and offer much faster shipping. Plus, our technical support team is online and ready to help you without the delay of international time zones.

Solid Build Quality: Lower cost doesn't mean lower quality. We use high-grade silicon steel and premium magnets to ensure heat resistance and stable power output.

Why the 60ZWS02 is Perfect for Robot Joints

1. Save Space, Build Sleeker Because it is a "frameless" design, there is no bulky outer housing. You can integrate the motor directly into the robot’s thigh or knee joints. At just 60mm in diameter, it keeps your robot’s profile slim and agile.

2. High Torque, Instant Response Quadruped robots need to jump and run, which requires massive bursts of power. The 60ZWS internal structure is optimized for high peak torque, giving your robot the responsiveness it needs to handle complex movements without lag.

3. Runs Cool We designed our windings with heat dissipation in mind. Even during long hours of operation, the 60ZWS stays within a safe temperature range, so you don’t have to worry about performance drops due to overheating.

Quick Specs

Model: 60ZWS02 (60mm OD)

Rated Torque ：0.53(N.m)
Peak Current：19(A)
Rated Voltage：24(V)
Rated Power：98(w)
Rated speed ：1760(rpm)
Peak Torque ：1.8(N.m)
height (mm) ：12
Rated Current：5.6(A)
EMF constant：6.41(Vrms/krpm)
OperatingTemperature：-40~+60C

Type: Frameless Torque Motor

Best For: Quadruped robot joints, robotic arms, and precision gimbals.

Key Pros: Cost-effective, high power-to-weight ratio, ultra-compact.

All motors can be customized in torque/ voltage/ size etc. Pls contact us for more details and requirements

MAINTEX also provides custom options. Design drafts will be ready in 3 days for your approval.

	Customization of Size and Structure		Customized functions and options		Coil and magnet configuration
	Performance parameter customization		Material and processselection		Customization of leads and connectors

If you’re developing a robot and looking for a high-value alternative to TQ, the MAINTEX 60ZWS02 is a solid, reliable choice.

FAQ: MAINTEX Frameless Torque Motors

1. What exactly is a frameless motor? And why is it the standard for robotics?

 A frameless motor is essentially a motor stripped down to its core—just the stator and the rotor. We’ve removed the housing, bearings, and shaft. In the world of quadruped robots, weight and space are everything. By using a frameless design, you can embed the motor directly into the robot's joints, cutting out unnecessary bulk. This makes the robot lighter, faster, and much more agile.

2. How does the MAINTEX 60ZWS02 stack up against TQ motors? 

To put it simply: value and lead time. As a direct manufacturer, our 60ZWS02 matches the torque performance of TQ but at a much more realistic price point—you aren't paying for "brand prestige." Plus, since our factory is based in China, we can support everything from small sample runs to high-volume orders with real-time technical support.

3. Is the 60ZWS02 powerful enough for large robot dogs? 

Absolutely. This motor is built specifically for the "explosive power" required by quadruped robots. It can output massive torque in short bursts, which is perfect for jumping, backflips, or maintaining balance on rough terrain. It hits that "sweet spot" between size, weight, and pure strength.

4. Can I customize the windings or dimensions?

 Yes, definitely. Because we handle our own R&D and production, we aren't just a reseller. If you need a specific voltage, a custom KV rating, or slight adjustments to the mounting dimensions, we can handle that during the manufacturing process. It’s a level of flexibility you just don't get with standard off-the-shelf foreign brands.

5. Does the motor overheat during heavy use?

 Any motor will generate heat under high load, but we’ve optimized the cooling paths in the 60ZWS02. We use high-grade magnets and silicon steel sheets that handle heat much better than standard materials. As long as your structural cooling is set up correctly, the motor will stay stable and won't let you down during long-duration operation.

6. What is the typical lead time? 

For common models like the 60ZWS02, we usually have them in stock and ready to ship. Even for custom bulk orders, our local supply chain allows us to deliver within 30 days. You won't have to worry about your R&D schedule being stalled while waiting for parts.

7. Are frameless motors difficult to install?

 They do require more precision than a housed motor because you rely on your own structure for alignment. However, don’t let that worry you. We provide detailed 3D models and step-by-step installation guides to help your engineers integrate the stator and rotor into your robot joints quickly and accurately.

8. What’s the benefit of buying direct from the factory instead of a distributor?

 The biggest plus is cost—you’re getting factory pricing without the middleman markup. Second is communication. When you have a technical question, you get answers directly from the engineers who designed the motor. Nothing gets lost in translation, and problems get solved much faster.

9. Is this motor just for high torque, or is it fast too?

 While it’s called a "torque motor" because of its strength, the 60ZWS02 actually has a very wide effective speed range. It provides the power needed for heavy lifting while remaining fast enough for the rapid leg recycling and swing motions required for high-speed running.

10. Can this motor be used for things other than robot dogs? 

Definitely. Beyond quadrupeds, this motor is a popular choice for exoskeleton joints, collaborative robot arms (cobots), high-precision camera gimbals, and any precision equipment where you are tight on space but need a lot of torque.