ESCOGEAR F Series Couplings
ESCOGEAR F are all-steel, torsionally rigid gear couplings from ESCO with a two-piece flanged sleeve and hubs featuring the patented MULTICROWN tooth profile.
They are designed for high torque transmission at misalignment up to 2 × 0.75° – with no reduction in torque capacity and no need for oversizing.
Shaft Coupling Description
ESCOGEAR F series are torsionally rigid, double-engagement gear couplings. They consist of two hubs with external MULTICROWN teeth and a two-piece flanged sleeve with internal straight teeth.
The patented MULTICROWN tooth geometry maintains minimal backlash and ensures smooth operation across the full range of speeds, torques, and misalignment up to 2 × 0.75°. Axial displacement capacity is determined by the length of the sleeve's internal toothing – extended length is available on request.
The sleeve flanges are designed to transmit torque without fretting corrosion at the mating surfaces. They are fastened with Class 12.9 high-strength bolts with a GEOMET corrosion-resistant coating and zinc-plated nuts. Standard couplings are sealed at both sleeve ends with o-rings. A removable sleeve cap version is also available for easier shaft installation.
The couplings are designed for horizontal and vertical applications. For types with off-center toothing, the hubs can be reversed during assembly. This provides two different tooth positions relative to the shaft end, facilitating length adjustment without the need for non-standard components.
Grease relubrication is straightforward and supports extended service intervals.
On request, the couplings can be supplied with special options (e.g. set screws, VITON o-rings). For use in explosive atmospheres, an ATEX-certified version is available.
Shaft Coupling Construction
- Two-piece flanged sleeve with internal straight teeth
- Left hub with external MULTICROWN teeth
- Right hub with external MULTICROWN teeth
- High-strength bolt (Class 12.9, GEOMET coated)
- Sleeve seals (o-rings)
Typical Applications
ESCOGEAR F series shaft couplings are designed to transmit the highest torques in all industries.
They are used mainly in the drives of conveyor systems, rolling mills, mixers, cranes, and other demanding drives in steel mills, in the paper, chemical, and rubber industries.
The unique modular system offers maximum flexibility in assembling various configurations, including suitable accessories such as brake discs or drums.
Materials
Gear couplings are generally manufactured from C45 carbon steel (AISI 1040).
For higher torque ratings within the same coupling size, 42CrMo4 quenched and tempered alloy steel can be specified on request. For extremely demanding operating conditions and further improvement in fatigue strength, tooth nitriding is available as a custom option.
Key Features
- Full nominal torque capacity maintained at misalignment up to 2 × 0.75°
- Straightforward coupling selection without uncertainty caused by unpredictable operating misalignment
- Compact dimensions and low weight with no need for oversizing
- Wide range of bore sizes and design configurations
- Reversible hubs – axial length flexibility (selected types)
- Uniform load distribution across all teeth – AGMA 8–10 gear accuracy
- Minimal backlash – precise sleeve centering and vibration reduction
- No fretting corrosion in flange connections and no thread damage
- Long service life of all components
Documents for Download
Related Products
ESCOGEAR F Series Couplings
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Questions about This Shaft Coupling Category?
Don’t hesitate to contact us with any questions about products in this category.
We also provide design and calculation of transmission components, including shaft couplings. In the case of your interest in this service, use the detailed Drive or Coupling Calculation Form.
Shaft Coupling Manufacturer Profile
Thanks to its in-house development, engineering, and manufacturing expertise, ESCO Couplings has become a leading global specialist in high-quality gear and disc couplings for standard as well as highly demanding applications – such as the ICE 3 high-speed trains. Its solutions are used not only in transportation, but also in energy production, mining, the petrochemical industry, construction, and agriculture.
ESCO Couplings SRL is part of the ESCO Group, which is organized into two independent business units – ESCO Couplings and ESCO Transmissions. It operates 4 manufacturing plants and employs more than 200 people in Belgium and other European countries, China, and India. The Group relies on a tightly connected distributor network representing the brand in more than 25 countries worldwide.
We are an authorized distributor of gear and disc couplings from the Belgian company ESCO Couplings SRL.
Related Articles
High Loads and Unpredictable Misalignment? MULTICROWN Is the Answer
ESCOGEAR shaft couplings transmit their full nominal torque up to 10,080,000 Nm even under operating shaft misalignment of 2 × 0.75°.