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Ruland Coupler 19.1 mm OD, 4 mm Bore Finished with No Keyway Bore, 9.7 mm Length Set Screw Style MOST19-4-A
Specifications
| Country of Origin | United States |
|---|---|
| Brand | Ruland |
| Material | Aluminium |
| Model | MOST19-4-A |
| Maximum Speed | 4500rpm |
| Outside diameter | 19.1mm |
| Bore Diameter | 4mm |
| Bore Type | Finished with No Keyway |
| Standards/Approvals | REACH, RoHS |
| Misalignment - Angular | 0.5° |
| Misalignment - Parallel | 0.2mm |
| Misalignment - Axial | 0.1mm |
| Hub Length | 9.7mm |
| Securing | 13mm and 19mm anodised aluminium hubs are secured to the shafts with one set screw on each end. 33mm, 35mm and 41mm hubs have 2 set screws set 90° apart |
Key Features
- Constructed from black anodised aluminium hubs with replaceable acetal or nylon centre discs.
- Designed to protect machinery from torque overload by breaking centre torque discs cleanly.
- Set screw style hubs secured to shafts with one set screw on each end for 19 mm hubs.
- Accommodates maximum rotational speed of 4500 rpm with angular, parallel, and axial misalignment tolerances.
- Compliant with REACH and RoHS standards ensuring environmental safety.
- Manufactured in the United States with precision finishing for reliable performance.
Product Description
Ruland MOST19-4-A Coupler is a high-quality flexible coupling designed for reliable mechanical power transmission in industrial, laboratory, construction, and manufacturing settings. Featuring a 19.1 mm outside diameter and a 4 mm bore finished without a keyway, this coupling measures 9.7 mm in hub length and is constructed from black anodised aluminium for durability and wear resistance.
This set screw style coupling includes two hubs and a replaceable centre torque disc made from acetal or nylon, offering the capability to accommodate small amounts of axial (0.1 mm), angular (0.5°), and parallel (0.2 mm) misalignment, thus ensuring smooth shaft connections even in dynamic environments. The unique three-piece design protects machinery from torque overload by allowing the centre disc to break cleanly, acting as a torque limiter.
Securing is done via one set screw on each shaft end for 19 mm anodised aluminium hubs, providing stable and secure attachment. This flexible coupling supports a maximum rotational speed of 4500 rpm, making it well-suited for motion control applications employing stepper or servo motors.
Manufactured under REACH and RoHS compliance in the United States, the coupling ensures environmental sustainability and safety standards. It is ideal for use in industrial power transmission, HVAC machinery, manufacturing equipment, and laboratory setups requiring reliable shaft coupling solutions.
Durable anodised aluminium hubs with replaceable acetal or nylon torque discs. Designed for slight misalignments to reduce wear and tear on connected shafts. Torque limiter function protects equipment from mechanical overload.
Set screw securing system for reliable shaft attachment. Supports up to 4500 rpm operational speed. Compliant with REACH and RoHS environmental standards. Precision manufacturing from the United States ensuring quality and reliability.
This coupling requires two hubs and one torque disc for assembly, making it customizable to specific power transmission needs. Explore more flexible couplings and related mechanical power transmission products for your industrial applications at EnvMart.
Explore more products in our Flexible Coupler category.
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Frequently Asked Questions
This model supports a maximum rotational speed of 4500 rpm, making it suitable for various motion control applications.
The coupling has an outside diameter of 19.1 mm, a bore diameter of 4 mm, and a hub length of 9.7 mm.
It is constructed from black anodised aluminium for the hubs and features replaceable centre discs made from acetal or nylon.
This unit can accommodate angular misalignment of up to 0.5°, parallel misalignment of 0.2 mm, and axial misalignment of 0.1 mm.
The hubs are secured to the shafts with one set screw on each end, ensuring a stable attachment.
Yes, it is compliant with REACH and RoHS standards, ensuring environmental safety.
The torque disc is designed to protect machinery from torque overload by breaking cleanly under excessive torque conditions.
It is suitable for use in industrial power transmission, HVAC machinery, manufacturing equipment, and laboratory setups.
The bore is finished with no keyway, allowing for a smooth connection to the shafts.
It is manufactured in the United States, ensuring precision and quality in its construction.
This coupling requires two hubs and one torque disc for complete assembly.
The unique three-piece design allows for slight misalignments, which helps reduce wear and tear on the connected shafts.
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