Accessories: Mechanical synchronization made easy

Individual lifting elements can already achieve a lot. It gets more complex when a Screw Jack is no longer sufficient. With the right Accessories, the lifting elements can be driven in combination without the need for complex control.

3 reasons why our Accessories are perfect for your project:

  • done
    Flexibility in lifting systems
  • done
    Minimal control effort
  • done
    Minimal assembly effort
Bevel Gearbox used in Electromechanics - GROB Drive Technology

Customers from all over the world trust our Accessories

The Accessories we provide

✔ Elastic universal joint shafts
✔ Cardan shafts
✔ Connecting shafts
✔ Support bearings
✔ Motor cones for motor mounting
✔ Three-phase standard motors
✔ Torsional flexible couplings

Accessories - GROB Drive Technology

Unbeatable Advantages of our Accessories

Check - GROB GmbH Antriebstechnik

Low Operating Costs

Connecting shafts, couplings, bevel gearboxes, etc., all enable individual adaptation to the conditions on site. Are you planning a lifting system in a finished building with columns, offsets, steps on the floor? No problem - with the plant accessories, you can redirect torque by 90°, compensate for offset irregularities, or simply use longer or shorter connecting shafts.

Check - GROB GmbH Antriebstechnik

Absolute Control and Synchronization

A single encoder is sufficient to control an entire lifting system that's mechanically coupled together. Other expensive control elements also no longer need to be installed more than once. The mechanical coupling through connecting shafts, couplings, and bevel gearboxes enables extremely precise synchronization of all drives with each other.

Check - GROB GmbH Antriebstechnik

Assembly simplified

All connecting elements can interlock positively through the nut and the fitting key. The assembly process is designed to be extremely straightforward. Once the fixed elements are aligned, it's simply a matter of inserting the connecting elements via plug-and-play and conducting the test run.

In comparison

Comparable Accessories

Often only standard solutions are offered

Synchronization requires high control effort

Expensive to purchase

Accessories by GROB

Besides standard solutions, custom solutions are also available

Cost-effective synchronization of uncomplicated parts

Comprehensive range of accessories

Operating instructions

Operating Instruction - Flexible Cardan Shafts - GROB GmbH

Flexible Cardan Shafts

Operating Instruction - Bevel Gearbox - GROB GmbH

Bevel Gearbox - Version V

Operating Instruction - Support Bearings - GROB GmbH

Support Bearings

FAQs

No, a fixed bearing is fundamental in any drive system. Without a fixed bearing, reliable axial movement cannot be performed.

Yes, for short spindles or low speeds, the spindle is sufficiently dimensionally stable without additional radial bearings at the spindle end.

Both terms describe the ability of a spindle not to "slip" on its own when at a standstill.

Static self-locking refers to a thread angle between 2.4°-4.5°. In standstill, the spindle does not slip on its own, but it might not come to a stop on its own from motion. Dynamic self-locking occurs when there is an additional braking action from the dynamics. The thread angle is then smaller than 2.4°.

Self-Locking: Static vs. Dynamic | GROB Antriebstechnik GmbH chevron_right

Anti-rotation is always necessary. Due to the sliding friction in the thread, the applied load would simply rotate along with it, and there would be no relative motion (linear motion).

The higher the axial force on the thread, the higher the frictional force, as Fr = FN * µ.

Self-locking is achieved with a pitch angle below 4.5 degrees.

  1. When under pressure load: depending on the control, 100% repeatability can be achieved.
  2. Under changing loads: the control system must consider the backlash at the sprocket and manufacturing tolerances in the chain links.
  1. The load must always be guided
  2. Acceleration should be controlled via a ramp
  3. The chain cannot perform a swiveling movement
  4. The permissible buckling length must not be exceeded

Pillow block bearings are used in lift systems with mechanical coupling (i.e., connecting shafts). The bearings shorten the free length of the connecting shafts, thereby preventing oscillation at high speeds.

When transporting people, DIN EN ISO 17206 applies. This standard for event technology defines the required safety measures, safety devices, and system-relevant shutdowns.

The duty cycle (ED) indicates how long an electromechanical drive can operate within a given time period without overheating. It is typically expressed as a percentage and refers to a 10-minute cycle.

Question not included?

You can find us here

GROB GmbH Antriebstechnik
Eberhard-Layher-Straße 5-9
74889 Sinsheim-Steinsfurt

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