Click here to access all catalogs and accessories:
Screw Drives: Cost-effective and energy-efficient by GROB
Sometimes, all you need is a spindle with the appropriate nut and the right end processing.
3 reasons why a screw drive by GROB could be perfect for your project:
-
done
Low acquisition costs
-
done
You remain flexible in your design
-
done
Low downtime for high yield
Customers trust GROB's Screw Drives
Do you have similar problems?
Risk during load movement
In applications where it's crucial to securely and reliably hold loads in position, there's often a risk of unintended falling or shifting.
High wear and maintenance effort
In spindles that are heavily used, wear on moving parts leads to frequent maintenance needs and higher operating costs.
Expensive to purchase
In projects or applications with a limited budget, expensive drive systems pose a challenge, especially when cost-effective yet high-performance alternatives are needed.
How to solve these problems with a screw drive
High safety standards
The screw drive offers high safety through its self-locking feature. This property prevents unintended falling or shifting of loads, as the drive's self-locking mechanism ensures stable positioning.
Low-wear performance
GROB's screw drives are low-wear, which extends their lifespan and minimizes maintenance. The robust construction ensures reliable and long-lasting performance, even under heavy use.
Cost-effective solution
Screw drives are cost-effective and provide an economical solution for drive systems. Their simple design and low production costs make them an attractive option for projects with a limited budget.
Our Bestseller: GROB Trapezoidal Spindle
Trapezoidal screw drives are cost-effective solutions for machine tools, positioning systems, and lifting mechanisms. Thanks to their self-locking thread, a trapezoidal screw spindle offers a high level of safety. You can get trapezoidal screw spindles from TR10 - TR300 in these materials:
✔ C45
✔ V2A
✔ V4A
To safely transmit axial forces, you need a worm wheel matched to the spindle. In our product portfolio, you'll find different types of nuts:
✔ Square steel nut
✔ Hexagonal steel nut
✔ Single flange nut
✔ Travelling nut with swivel pin or key surface
✔ Safety nut
The fastest solution: GROB ball screw spindles
As demands for speed and cycles increase, ball screw drives come into focus. With ball screw spindles, higher traverse speeds and shorter cycle times are possible compared to common screw jacks. We offer ball screw spindles in these materials:
✔ 42CrMo4V
✔ 50CrMo4
✔Cf-53
To safely transmit axial forces, you need a worm wheel matched to the spindle. In our product portfolio, you'll find different types of nuts:
✔ Short nut
✔ Single flange nut
✔ Safety nut
Unbeatable Advantages of a Screw Drive by GROB
Cost-effective Drive Solution
One main reason for the cost-effectiveness of screw drives is their relatively simple production and the low number of components used. Therefore, compared to standard drive solutions like spindle lifting mechanisms, screw drives can be up to 50% cheaper.
Low Design Effort
Screw drives are typically standardized and easy to integrate into existing designs. This minimizes the effort for developing custom solutions and saves time in the development phase.
Low Assembly Effort
The low assembly effort stems from the minimal number of parts in a screw drive, leading to fewer labor hours during assembly. Additionally, GROB screw drives are optionally supplied with fixed and loose bearings.
High Safety Factor
Trapezoidal screw spindles offer a high level of safety as a drive due to their self-locking thread, eliminating the need for costly brakes.
Short Cycle Times
Ball screw spindles can swiftly move loads as a drive because they have low rolling friction. This results in short cycle times for maximum efficiency.
Still not quite sure?
Our figures speak for themselves.
8000
80
3700
In comparison
Other Screw Drives
✖ More expensive in procurement
✖ Higher assembly effort
✖ They have a longer cycle time
Screw Drives by GROB
✓ Up to 50% cheaper procurement
✓ Low assembly effort
✓ High safety factor
Success Story: How GROB Screw Drives ensure safety
Trapezoidal Spindles at Theater Pforzheim
Trapezoidal spindles and theater stage? At first glance, they seem unrelated. However, upon closer inspection, the curtain rises above the stage. Beneath the theater stage lies a complete lifting system. It may consist of as many as 100 or more lifting drives, universal joints, distribution gears, and a control system. But how are GROB trapezoidal spindles used there? Keep reading to find out more!
Operating instruction
Ball Screws
FAQs about Screw Drives
What's a screw drive?
A screw drive is a mechanical device that converts rotational motion into linear motion. It consists of a spindle and a nut with matching threads.
Screw Drives: Trapezoidal Screw vs. Ball Screw - GROB GmbH chevron_rightWhat types of screw drives are there?
There are various types, including trapezoidal threads, ball screws, and acme threads. Each type has specific applications and characteristics.
What should be considered when selecting a screw drive?
Key factors include load, speed, precision, and environmental conditions. If load is more important to you, a trapezoidal screw might be suitable. If speed is crucial, a ball screw would be more advantageous. The choice depends on the specific requirements of your application.
What are the advantages of ball screws over trapezoidal screws?
Higher efficiency, higher speeds, precise theoretical calculation of service life
What is the maximum speed of trapezoidal screw drives?
6 m/min
Why is the speed of trapezoidal screw drives limited?
The maximum speed of trapezoidal screw drives is limited by the sliding velocity. If this is too high, the lubricating film tears off.
What is better: ball screws or trapezoidal screws?
Both types of threads have their merits. Generally, ball screws are used for fast and precise linear movements. Trapezoidal screws are employed when the focus is solely on adjustment or if the operation is more rugged.
What structural changes are there in the gearbox between ball screw drive and trapezoidal screw drive (outer dimensions)?
In the case of the traveling nut version, only the nut connection dimensions change. In the basic version with the ball screw spindle, it may occur that the bearing cover is raised to accommodate the ball screw nut in the gearbox.
How is the lubrication of screw drives performed?
Screw drives require regular lubrication to minimize wear. The type of lubricant and the intervals depend on the operating conditions.
Is it possible to equip the gearbox with a stainless-steel spindle?
Yes, threaded spindles can also be equipped in stainless steel.
You can find us here
GROB Antriebstechnik GmbH
Eberhard-Layher-Straße 5-7
74889 Sinsheim-Steinsfurt
Eberhard-Layher-Straße 5-7
74889 Sinsheim-Steinsfurt
Interested in a product? Submit an inquiry now!
Give us a call:
Or send us an email:
Philipp Schmalzhaf, Sales Manager