Hollow Structure Hypoid Tables

Hollow Structure Hypoid Tables are precision rotary positioning hypoid gear hollow rotary tables integrating a hypoid gear drive with a large central through-bore. The hypoid gear set features offset, non-intersecting axes, combining high reduction ratios with rolling-sliding tooth contact. The hollow structure—a fixed or rotating open center—allows cables, fluid lines, or laser beams to pass axially through the table, eliminating external drag chains.

Mechanically, the housing supports crossed roller or angular contact bearings around the bore to handle axial, radial, and moment loads. Unlike solid-shaft indexers, hollow structure designs simplify machine architecture, reduce footprint, and enable unrestricted utility routing directly through the rotation axis. 

Here are the key points about hypoid hollow rotary tables:

Hypoid Gears:Hypoid gears are a type of bevel gear where the axes of the two shafts are offset and do not intersect.
Hollow Structure:In hypoid hollow rotary tables, the hypoid gear is designed with a hollow or tubular center.
Hypoid hollow rotary tables are a specialized type of gear design that combines the advantages of hypoid gears with a lightweight, hollow structure, making them well-suited for various power transmission applications, particularly in the automotive and industrial sectors.

Hollow Apeture Hypoid Gear Tables,The name sounds awkward, but if you open it up, you’ll know how real this thing is.

First, let’s talk about Hypoid – hypoid gear. The special feature of this gear is that the axes of the large and small gears are offset, unlike ordinary bevel teeth that bite on the same plane. What’s good about this design? The bite is smoother, the contact surface is larger, it runs quietly, and the load-bearing capacity is higher.

Speaking of Hollow Structure of Hollow Structure Hypoid Tables. I’ll dig a big hole in the middle for you, through which cables, air pipes, lasers, and even the axis of a robotic arm can pass. Save space, and also eliminate the messy cheats of drag chains.

By combining these two, it has become the “waist” of many automation devices today – able to withstand heavy loads, rotate accurately, and allow various wire harnesses to pass through.

TallMan Robotics Limited recently provided a set of laser cutting workstations with this Hypoid Gear Rotary platforms.

The load is not large, but the laser head needs to rotate at a large angle and there are many cables. A regular turntable can be twisted into a ball after a few turns of wire. With this one, the wire runs through the middle and can rotate 360 degrees freely, solving the problem of twisted wires.

Speaking of which, this Hollow Structure Hypoid Tables is gradually increasing in China. Previously, only Japanese and German products were available, with long lead times and unfriendly prices. Now manufacturers like TallMan Robotics Limited can also produce products with comparable performance, achieving accuracy within tens of arcseconds and solid control of backlash. For equipment engineers, having one more choice is always a good thing.

FAQs

What is the benefit of hypoid gears?

Hypoid gears offer high torque, smooth transmission, low noise, and strong anti-shock performance, with better rigidity and durability than standard spiral bevel gears.

How does a hypoid actuator differ from a hollow worm gear table?

Hypoid gears use offset axes with rolling-sliding contact, achieving high efficiency(90%) and lower heat generation. Worm gears rely purely on sliding friction (40–85% efficiency). The hollow structure itself is similar, but hypoid tables run cooler and allow higher speeds (up to 200 rpm vs. 60 rpm for worm). However, hypoid tables are not self-locking—worm tables hold position without a brake. For vertical axes requiring holding torque, a worm hollow table may be preferred despite lower efficiency.

Can I pass a rotating shaft through the hollow structure while the table indexes?

Yes, using a “shaft-in-bore” configuration. The hollow bore accepts a stationary or independently rotating shaft. If the shaft must rotate at a different speed or direction than the table, install bearings inside the bore and seal the annular gap with rotary unions. For synchronous rotation (shaft fixed to table output), use a keyway or shrink disk. The hypoid table’s encoder does not monitor the internal shaft—separate feedback is required for independent motion. Maximum shaft diameter should be 5–10 mm less than bore size to allow for seals and air circulation.

You are welcome to watch more projects or visit our website to check other series or load down e-catalogues for further technical data. 

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