*mydirectindustry

Screw drives

Product catalog summary

Introduction
The document discusses GROB's expansion in drive technology, focusing on spindle production since 1986. Spindles are crucial for linear movement in industries like wood and metal processing, materials handling, and automation. GROB offers customizable spindles in various threads, lengths, and materials, with no minimum order quantity.

Trapezoidal Spindles
These spindles are made from materials such as C35E, C45, and stainless steels, available in single or multi-start configurations. Custom specifications can be ordered, with details like thread type, diameter, pitch, material, and finishing included in the order code.

Whirled and Rolled Trapezoidal Spindles
Whirled spindles, produced using a whirling machine, offer superior lubricating film bonding and thread pitch accuracy. Rolled spindles, manufactured through a chipless rolling process, are ideal for mass production due to their smooth surface and increased strength.

Ball Screw Spindles
These spindles are designed for precise linear movements and come in various configurations. The document details order codes, technology, and nut types available.

Spindle Ends and Accessories
Information on spindle ends, including fixed and floating bearings, is provided, along with accessories like nut brackets and trunnion adaptors.

Calculations and Checklists
Sections include calculations for trapezoidal and ball screw spindles, sample calculations, and checklists to ensure proper selection and use.

Design Sheet
A design sheet is available for custom specifications, ensuring customer requirements are met effectively.

Specifications
The document provides detailed specifications for rolled trapezoidal threaded spindles and associated nuts, covering materials, manufacturing processes, and usage recommendations.

Manufacturing Process
Rolled trapezoidal threaded spindles are produced using a rolling machine, a chipless process ideal for mass production.

Applications
Trapezoidal thread spindles are suitable for damp environments, resistant to corrosion and acids, and used in manual applications, low-speed operations, clamping functions, and static loads.

Nuts for Trapezoidal Spindles
Various nut types are available, each with specific thread sizes, pitch directions, and materials, suitable for manual and motor drives, low and medium speeds, clamping functions, and lifting tasks.

Standards and Compliance
Material data complies with DIN EN 10083-1 and DIN EN 10083-2 standards, and thread types conform to Metric ISO trapezoidal screw threads DIN 103-7e.

Express Service Options
GROB offers express services for urgent deliveries with surcharges, including Premium Express Service (2 working days, 50% surcharge) and Express Service (5 working days, 25% surcharge).

Ball Screw Spindles
Highlighted for their high mechanical efficiency, allowing increased duty cycles, higher speeds, and reduced driving power compared to trapezoidal thread spindles.

Whirled vs. Rolled Ball Screw Spindles
Whirled spindles offer higher thread pitch accuracy, while rolled spindles provide a smooth surface and are suitable for mass production.

Material Specifications
Materials such as 42CrMo4V, 50CrMo4, and Cf-53 are listed, with guidelines for straightness per meter and pitch accuracy.

Specifications and Parameters
Technical specifications related to surface compression, torque, and operational parameters are outlined, including input power, torque, speed, and ambient temperature effects.

Procedures and Calculations
Detailed methods for determining critical speeds, permissible loads, and service life of components are provided, with sample calculations included.

Standards and Recommendations
Emphasizes proper lubrication conditions and highlights risks associated with critical speeds, providing guidelines for reducing duty cycles at higher temperatures.

Key Data and Tables
Tables show relationships between ambient temperature and duty cycles, and coefficients for calculating operational speeds, with sample calculations for service life.

Critical Information
- Permissible surface pressure depends on material pairing.
- Ball screw nuts cannot absorb radial forces and breakdown torque.
- Energy conversion efficiency of the spindle-nut system is 51.8%.
- Feed speed for trapezoidal thread drive is 60 mm/s.

Conclusion
The document provides comprehensive guidelines and calculations for assessing mechanical components' performance and limitations, emphasizing adherence to specified parameters for optimal performance and longevity.

Catalog excerpts

Gewindetriebe Screw drives

Open the catalog to page 1

Inhaltsangabe Product Overview 1. Einleitung 1. Introduction 2. Trapezgewindespindeln 2. Trapezoidal spindles 2.1 Bestellcode Trapezgewindespindeln 2.1 Order code trapezoidal spindle 2.2 Technologie des Trapezgewindes 2.2 Technology of the trapezoidal thread 2.3 Gewirbelte Trapezgewindespindeln 2.3 Whirled trapezoidal spindle 2.4 Gerollte Trapezgewindespindeln 2.4 Rolled trapezoidal spindle 2.5 Gesamtübersicht Trapezgewindespindeln 2.5 General survey trapezoidal spindle 2.6 Muttern für Trapezgewindespindeln 2.6 Nuts for trapezoidel spindles 2.6.1 Bestellcode Muttern 2.6.1 Order code nuts 2.6.2...

Open the catalog to page 2

Inhaltsangabe Product Overview Seite Page 3.6 KGT-Muttern 3.6 Ball screw nuts 3.6.1 Bestellcode KGT-Muttern 3.6.1 Order code ball screw nuts 3.6.2 Kugelgewindeflanschmuttern Version D oder N 3.6.2 Ball screw flange nuts version D or N 3.6.3 Kugelgewindeflanschmuttern Version I 3.6.3 Ball screw flange nuts version I 3.6.4 Kugelgewindezylindermuttern Version D oder N 3.6.4 Cylinder ball screw nuts version D or N 3.6.5 Kugelgewindezylindermuttern Version I 3.6.5 Cylinder ball screw nuts version I 4. Spindelköpfe (Endbearbeitung) 4. Spindle ends (Finishing process) 4.1 Festlager 4.1 Fixed bearing...

Open the catalog to page 3

Die Firma GROB baute in den letzten Jahren verstärkt den Bereich Antriebstechnik aus. Dennoch wurden nie die Wurzeln der Lohnfertigung vergessen. In recent years the GROB company has been focusing on expanding in the area of drive technology. Nevertheless, the roots of contract manufacturing were never forgotten. Seit 1986 gehört unter anderem auch die Spindelfertigung zu unserem Tagesgeschäft, die ihren Ursprung unter Herr Günter Grob fand. Since 1986 spindle production, among other things, is a part of our daily business, which originated with Mr. Günter Grob. Spindeln werden zur Linearbewegung...

Open the catalog to page 4

2. Trapezgewindespindeln 2. Trapezoidal spindles Trapezgewindespindeln können aus verschiedenen Werkstoffen hergestellt werden, z.B. • • • • • Trapezoidal thread spindles can be made from various materials, such as • • • • • Dadurch verfügen sie über eine breite Basis an Eigenschaften. Thus, they have a broad base of properties. Trapezgewindespindeln können ein- oder mehrgängig gefertigt werden. Neben der in den Tabellen aufgeführten Steigungsvarianten sind auf Wunsch auch weitere Optionen möglich. Trapezoidal thread spindles can be manufactured single start or multi-start. In addition to the...

Open the catalog to page 5

2.1 Order code trapezoidal spindle Please state in mm (3 digits) (Hinweis: Bei einer eingangigen Spindelsteigung ist Steigung gleich Profil) 10x15 = Zapfen (Durchmesser x Lange) M10x15 = Regelgewinde (Durchmesser x Lange) (Durchmesser x Steigung x Lange) S = Sonderende (nach Zeichnung) Please state in mm (2 digits) (Note: For single start spindles the pitch is equal 10x15 = Journal (diameter x length) M10x15 = Standard thread (diameterx length) (diameter x pitch x length) 10x15 = Zapfen (Durchmesser x Lange) M10x15 = Regelgewinde (Durchmesser x Lange) (Durchmesser x Steigung x Lange) S = Sonderende...

Open the catalog to page 6

2.2 Technologie des Trapezgewindes 2.2 Technology of the trapezoidal thread Geometrie Trapezgewinde Trapezoidal thread geometry Verlag Europa Lehrmittel, Tabellenbuch Metall, Stichwort „Gewinde“, Band 42, Seite 193

Open the catalog to page 7

2.3 Gewirbelte Trapezgewindespindeln 2.3 Whirled trapezoidal spindle Das Gewinde einer gewirbelten Trapezgewindespindel wird mittels Wirbelmaschine erzeugt. Durch die tangentiale Abtragung des Spanes zählt es zu den spanenden Bearbeitungsverfahren. The thread of a whirled trapezoidal threaded spindle is generated by a whirling machine. Due to the tangential removal of the chip, it is one of the chip machining processes. Das bevorzugte Spindelmaterial dieses Verfahrens ist ein blank gezogener Stahl mit der Toleranzklasse h9 in unvergütetem Zustand, z.B. C45. The preferred spindel material of this...

Open the catalog to page 8

2.3 Whirled trapezoidal spindle ljx^^il3 e-mail: [email protected]

Open the catalog to page 9

2.4 Gerollte Trapezgewindespindeln 2.4 Rolled trapezoidal spindle Das Gewinde einer gerollten Trapezgewindespindel wird mittels Rollmaschine erzeugt. Durch die kalte Umformung des Vormaterials zählt es zu den spanlosen Bearbeitungsverfahren. The thread of a rolled trapezoidal threaded spindle is generated by a rolling machine. Due to the cold transformation of the pre-material, it is one of the chipless machining processes. Dieses Bearbeitunsverfahren wird bei der Massenfertigung bevorzugt angewandt, da das Verfahren technische Vorteile mit hoher Effizienz verbindet. This machining process is...

Open the catalog to page 10

2.4 Gerollte Trapezgewindespindeln 2.4 Rolled trapezoidal spindle AußenKerndurchFlankenSteigungsdurchmes- Steigung messer durchmesser winkel ser Outside diameter Core diameter Thread pitch Pitch angle diamter Max. Steigungsabweichung Max pitch deviation Geradheistsab- Gewicht weichung Straightness Weight deviation

Open the catalog to page 11

2.4 Gerollte Trapezgewindespindeln 2.4 Rolled trapezoidal spindle Trapezgewindespindeln aus X2CrNiMo17-12-2 (Werkstoff-Nr. 1.4404) werden in feuchten Umgebungen eingesetzt. Des weiteren sind diese Spindeln säurebeständig und garantiert widerstandsfähig gegen jede Art von Korrosion. Trapezoidal thread spindles from X2CrNiMo17-12-2 (material no. 1.4404) are used in damp environments. Furthermore, these spindles are acid-resistant and guarantee resistance against every type of corrosion. Material selection Material Material number Tensile strength Yield point Brinell hardness Standard length [N/mm²]...

Open the catalog to page 12

2.5 Gesamtübersicht Trapezgewindespindeln 2.5 General survey trapezoidal spindle Gewirbelte Trapezgewindespindeln Whirled trapezoidal spindle Metrisches ISO-TrapezgeMetric ISO trapezoidal winde DIN 103-7e screw threads DIN 103-7e Thread diameter TR10 ... TR260 2 ... 28 eingängig oder mehrgängig single-start or multi-start Max.possible pitch angel Thread alignment Standard length Geradheit pro Meter Steigungsgenauigkeit bei 300 mm Gewindelänge Werkstoff Straightness per meter Pitch accuracy with thread length of 300 mm Material bis 6000 mm aus to 6000 mm from one piece einem Stück über 6000 mm...

Open the catalog to page 13

Screw drives

Screw drives

Catalog excerpts

All GROB GmbH Antriebstechnik catalogs and technical brochures