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:
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Low acquisition costs
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You remain flexible in your design
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Low downtime for high yield
Customers trust GROB's Screw Drives
Do you have similar problems?
In applications where it's crucial to securely and reliably hold loads in position, there's often a risk of unintended falling or shifting.
In spindles that are heavily used, wear on moving parts leads to frequent maintenance needs and higher operating costs.
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
✔ Traveling 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 Screw Jacks, 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?
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 Screw Jacks, universal joints, bevel gearboxes, 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
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_rightThere are various types, including trapezoidal threads, ball screws, and acme threads. Each type has specific applications and characteristics.
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.
Higher efficiency, higher speeds, precise theoretical calculation of service life
6m/min
The maximum speed of Trapezoidal Screw Drives is limited by the sliding velocity. If this is too high, the lubricating film tears off.
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.
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.
Screw Drives require regular lubrication to minimize wear. The type of lubricant and the intervals depend on the operating conditions.
Yes, threaded spindles can also be equipped in stainless steel.
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74889 Sinsheim-Steinsfurt
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Philipp Schmalzhaf, Sales Manager