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Autonics

Flexible Shaft Couplings ERB Series

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SKU:
ERB Series
MPN:
ERB
Weight:
37.30 Grams
Call Us: +971- 4259 5133

Description

Product Overview

The ERB Series flexible shaft couplings are designed for precision and durability, offering a robust solution for torque transmission between shafts. Made from high-strength aluminum alloy (AL7075-T6), these couplings are engineered for high elasticity, ensuring reliable performance in demanding applications. The couplings feature zero backlash, which guarantees accurate torque transmission without any play, making them ideal for sensitive and high-precision machinery. To enhance longevity and resist environmental factors, the surface of each coupling is treated with alumite, providing superior corrosion resistance. The ERB Series is versatile in its application, available in two connection types—clamp type and set screw type—catering to different installation needs. These couplings are offered in two sizes, with outer diameters of 19 mm and 26 mm, making them suitable for a range of mechanical setups.

Key Features

  • Zero Backlash: Ensures precise and accurate torque transmission without any play, making it ideal for high-precision applications.
  • High-Strength Aluminum Alloy (AL7075-T6): Offers excellent elasticity and durability, ensuring long-lasting performance in demanding environments.
  • Alumite Treated Surface: Provides enhanced corrosion resistance, extending the life of the coupling even in harsh conditions.
  • Versatile Connection Types: Available in both clamp type and set screw type, allowing for flexible installation based on specific application requirements.
  • Multiple Sizes Available: The ERB Series comes in two outer diameter sizes—19 mm and 26 mm—making it adaptable to various mechanical configurations.

Cautions during Installation

To ensure optimal performance and longevity, it is crucial to install the ERB Series flexible couplings within the rated allowable misalignment range. Exceeding this range may result in vibrations or a reduced lifespan of the coupling. For setups involving multiple misalignments, it is recommended to reduce each allowable value by 50%. Additionally, for maximum longevity, it is advisable to use the coupling at one-third of the allowable misalignment value.

Cautions during Use

When utilizing the ERB Series couplings, it is important to verify that the coupling is suitable for the intended purpose. Despite its high-strength aluminum construction, the coupling can be damaged if dropped, struck, or subjected to excessive force. Overloading the coupling beyond its rated misalignment or shaft tolerance may lead to plastic deformation or product failure. If abnormal noises are detected during operation, it is imperative to cease operation immediately and investigate potential causes such as misalignment or unscrewing. Furthermore, in applications with significant load fluctuations, ensure the coupling is securely fastened to prevent unscrewing. For safety, install a cover or caution label if there is a risk of human contact.

Dimensions

The ERB Series couplings are available in multiple configurations. 

Ordering Information

When selecting the appropriate ERB Series coupling, refer to the model code breakdown:

  • Diameter: Indicates the external diameter in millimeters.
  • Connection Type:
    • C: Clamp Type
    • S: Set Screw Type
  • Bore Diameters: Represented as two numbers indicating bore diameters in millimeters.

Documents

Can't find the information you need? Our datasheets have all the details. Access them here:

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Additional Information

Material:
Aluminum (AL7075-T6), Alumite surface
Max Revolution:
8,000 rpm (Clamp Type 19 mm), 20,000 rpm (Set Screw Type 19 mm), 6,000 rpm (Clamp Type 26 mm), 15,000 rpm (Set Screw Type 26 mm)
Max Torque:
1.2 N·m (Clamp Type), 3.0 N·m (Set Screw Type)
Rated Torque:
0.6 N·m (Clamp Type), 1.5 N·m (Set Screw Type)
Mounting Bolt and Torque:
M2.5 (1 N·m), M3 (0.7 N·m), M4 (1.7 N·m)
Torsional Stiffness:
140 N·m/rad (Clamp Type), 240 N·m/rad (Set Screw Type)
Inertia Moment:
6.4 × 10^-7 kg·m² (Clamp Type), 3.4 × 10^-6 kg·m² (Set Screw Type)
Max Allowable Misalignment:
Angular: ≤ 2.5°, Parallel: ≤ 0.15 mm (Clamp Type), ≤ 0.2 mm (Set Screw Type), End-Play: ≤ ± 0.3 mm (Clamp Type), ≤ ± 0.4 mm (Set Screw Type)
Standard Bore Diameter:
Ø 4, Ø 5, Ø 6 mm (Clamp Type), Ø 6, Ø 8 mm (Set Screw Type)
Max Allowable Diameter:
Ø 4 to 8 mm (Clamp Type), Ø 5 to 12 mm (Set Screw Type)
Unit Weight:
14.4 g (Clamp Type 19 mm), 14.9 g (Set Screw Type 19 mm), 36.7 g (Clamp Type 26 mm), 37.3 g (Set Screw Type 26 mm)
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