The ESCO Gear Coupling FST Series is a high-performance, grease-filled gear coupling designed for robust industrial applications requiring exceptional torsional rigidity and reliable torque transmission. Featuring two hubs with external multi-crown teeth and two flanged sleeves with straight internal teeth, this coupling ensures continuous tooth engagement, transmitting torque through friction to prevent fretting corrosion and reduce backlash. The flanged sleeves are bolted securely with high-strength, corrosion-protected fitted bolts and nuts, while the endcaps equipped with O-rings provide effective sealing, enhancing durability and longevity. The FST series accommodates angular, parallel, and axial misalignments up to 1.5°, enabling flexibility in shaft alignment without compromising performance. Made primarily from carbon steel Ck45 (AISI 1040) with an option for higher alloy steel 42CrMo4QT for greater torque capacities, this series supports high torque demands of up to 5,040,000 Nm and large bore sizes up to 1130mm. The ESCO Gear Coupling FST Series guarantees superior manufacturing quality, extended coupling life, and reduced mechanical backlash, making it ideal for heavy-duty industrial machinery across diverse sectors.
Key Features
| Features | Description |
|---|---|
| Design | Grease-filled gear coupling with multi-crown external teeth hubs and flanged sleeves with straight internal teeth |
| Material | Standard carbon steel Ck45 (AISI 1040); Optional high alloy steel 42CrMo4QT for higher torque capacity |
| Torque Capacity | Up to 5,040,000 Nm |
| Bore Size | Up to 1130 mm |
| Misalignment Tolerance | Angular, parallel, and axial misalignment up to 1.5° |
| Bolting System | High-strength, corrosion-protected fitted bolts and nuts |
| Sealing | Endcaps with O-rings for effective sealing (internal for small couplings, screwed for larger) |
| Backlash | Reduced backlash for smoother torque transmission |
| Durability | High manufacturing quality with long coupling life guaranteed |
| Corrosion Prevention | Torque transmitted through friction to avoid fretting corrosion |
| Attributes | Description |
|---|---|
| Coupling Type | Gear Coupling |
| Series | FST Series |
| Material Standard | Carbon Steel Ck45 (AISI 1040) |
| Optional Material | 42CrMo4QT Alloy Steel |
| Maximum Torque Capacity | 5,040,000 Nm |
| Maximum Bore Diameter | 1130 mm |
| Maximum Angular/Parallel Misalignment | 1.5° |
| Maximum Axial Misalignment | Within specified limits (design dependent) |
| Bolts/Nuts | High-strength, corrosion-protected fitted bolts and nuts |
| Sealing Type | O-ring in Endcap (internal or screwed) |
| Filling | Grease-filled |
| Application Industries | Heavy-duty industrial machinery, manufacturing, power transmission |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
The ESCO Gear Coupling FST Series can handle torque capacities up to 5,040,000 Nm, making it suitable for heavy-duty industrial applications.
The standard material is carbon steel Ck45 (AISI 1040), with an optional upgrade to 42CrMo4QT alloy steel for higher torque capacity within the same coupling dimensions.
It accommodates angular and parallel misalignments up to 1.5°, as well as axial misalignment within specified limits, ensuring continuous tooth contact without damage.
Torque is transmitted through friction between the gear teeth which remain in constant contact, effectively preventing fretting corrosion.
Sealing is provided by O-ring housed in endcaps, which are internal for smaller sizes or screwed on for larger couplings to ensure grease retention and prevent contamination.
The FST Series supports a large bore capacity of up to 1130 mm, suitable for diverse shaft sizes.
The sleeves are bolted with high-strength, corrosion-protected fitted bolts and nuts, which enhance durability and allow easy maintenance.
Country Of Origin: India
The ESCO gear coupling is a robust, grease-filled coupling, offering exceptional torsional rigidity. It consists of two hubs with external multi-crown teeth and two flanged sleeves with straight internal teeth. These sleeves are securely bolted together using high-strength, corrosion-protected fitted bolts and nuts. An endcap on the opposite side of the flange, either internal for small or screwed for larger couplings, houses an o-ring for sealing purposes. The ESCO gear coupling is designed to transmit torque through friction, preventing fretting corrosion. Its teeth maintain continuous contact, allowing for angular, parallel, and axial misalignment within specified limits. The standard ESCO gear can accommodate up to 1.5° angular and parallel misalignment. The FST series is a reliable choice for a wide range of industries.
The ESCO gear coupling is a robust, grease-filled coupling, offering exceptional torsional rigidity. It consists of two hubs with external multi-crown teeth and two flanged sleeves with straight internal teeth. These sleeves are securely bolted together using high-strength, corrosion-protected fitted bolts and nuts. An endcap on the opposite side of the flange, either internal for small or screwed for larger couplings, houses an o-ring for sealing purposes. The ESCO gear coupling is designed to transmit torque through friction, preventing fretting corrosion. Its teeth maintain continuous contact, allowing for angular, parallel, and axial misalignment within specified limits. The standard ESCO gear can accommodate up to 1.5° angular and parallel misalignment. The FST series is a reliable choice for a wide range of industries.
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Chennai , India
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