Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

RULAND MANUFACTURING Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric - Zero-Backlash Curved Jaw Coupling Hubs
RULAND MANUFACTURINGZero-Backlash Curved Jaw Coupling Hubs

RULAND MANUFACTURING Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric

The RULAND MANUFACTURING MJS19-8-A is a zero-backlash curved jaw coupling hub in the MJS19 coupling size, constructed from metric aluminum with a 19.1 mm outside diameter. This component is designed for motion…

SKU 3G-OTH-134256

Also listed as: MJS198A · MJS19 8 A

Brand
RULAND MANUFACTURING
Item
Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric
Category
Zero-Backlash Curved Jaw Coupling Hubs
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

RULAND MANUFACTURING
Manufacturer Part Number
MJS19-8-A
Type
Metric, Aluminum
Outside Dia
19.1 mm

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

RULAND MANUFACTURING Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RULAND MANUFACTURING MJS19-8-A is a zero-backlash curved jaw coupling hub in the MJS19 coupling size, constructed from metric aluminum with a 19.1 mm outside diameter. This component is designed for motion control applications requiring precise torque transmission without backlash.

Frequently Asked Questions

What is a Ruland MJS19-8-A zero-backlash curved jaw coupling hub used for?

The Ruland MJS19-8-A is a zero-backlash curved jaw coupling hub used to connect two rotating shafts in motion-control applications. It accommodates misalignment while transmitting torque, making it ideal for servo motors, encoders, and precision positioning systems in industrial automation.

What are the specifications of the Ruland MJS19-8-A coupling hub?

The Ruland MJS19-8-A is a metric aluminum jaw coupling hub with a 19.1 mm outside diameter. It is part of the MJS19 coupling size family and is designed for zero-backlash curved jaw couplings. The manufacturer part number is MJS19-8-A.

Where to buy a Ruland MJS19-8-A coupling hub worldwide?

3G Electric supplies the Ruland MJS19-8-A coupling hub to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this precision motion-control component.

How to select the correct Ruland jaw coupling hub for my application?

To select the correct Ruland jaw coupling hub, match the bore size to your shaft diameter and confirm the outside diameter (19.1 mm for MJS19) fits your space. Ensure the hub material (aluminum) meets your torque and environmental requirements. Consult Ruland's catalog for misalignment ratings.

Used in

Common applications for RULAND MANUFACTURING
Automated packaging machinery — Ruland beam couplings (e.g., PSR20-8-5-A) for connecting servo motors to conveyor drive shafts.
CNC machine tools — Ruland rigid couplings (e.g., CLX-4-4-A) for precise alignment of ball screw assemblies.
Robotic arm joints — Ruland Oldham coupling hubs (e.g., OSC16-6-A) for accommodating axial motion in end-effector drives.
Pump and compressor systems — Ruland stainless steel shaft collars (e.g., CL-3-ST) for securing impeller shafts.
Printing press rollers — Ruland clamp-on beam couplings (e.g., PCR18-8-8-A) for synchronizing roller rotation with minimal backlash.
Material handling conveyors — Ruland set screw couplings (e.g., PSMR29-7-7-A) for linking gearboxes to drive rollers.

RULAND MANUFACTURING Products

3G Electric supplies RULAND MANUFACTURING zero-backlash curved jaw coupling hubs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
RULAND MANUFACTURING Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric, Aluminum (MPN MJS19-6-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric, Aluminum (MPN MJS19-6-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric, Aluminum (MPN MJS19-4-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric, Aluminum (MPN MJS19-4-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric, Aluminum (MPN MJS19-5-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric, Aluminum (MPN MJS19-5-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJS25 Coupling Size, 25.4 mm Outside Dia, Metric, Aluminum (MPN MJS25-12-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJS25 Coupling Size, 25.4 mm Outside Dia, Metric, Aluminum (MPN MJS25-12-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJS25 Coupling Size, 25.4 mm Outside Dia, Metric, Aluminum (MPN MJS25-10-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJS25 Coupling Size, 25.4 mm Outside Dia, Metric, Aluminum (MPN MJS25-10-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJS57 Coupling Size, 57.2 mm Outside Dia, Metric, Aluminum (MPN MJS57-20-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJS57 Coupling Size, 57.2 mm Outside Dia, Metric, Aluminum (MPN MJS57-20-A)

More from RULAND MANUFACTURING

View all RULAND MANUFACTURING parts
This zero-backlash curved jaw coupling hub is made of aluminum with a 2 1/4 in outside diameter. It is designed for use with spider inserts to dampen vibration and accommodate minor misalignment in power transmission systems. Common applications include motion control, packaging, and conveyor systems
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with a 2 1/4 in outside diameter. It is designed for use with spider inserts to dampen vibration and accommodate minor misalignment in power transmission systems. Common applications include motion control, packaging, and conveyor systems
This zero-backlash curved jaw coupling hub is made of aluminum with a 3 1/8 in outside diameter. It is designed for use in power transmission systems to connect two shafts while accommodating misalignment. Common applications include motion control, packaging, and conveyor systems where precise torque transfer is required
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with a 3 1/8 in outside diameter. It is designed for use in power transmission systems to connect two shafts while accommodating misalignment. Common applications include motion control, packaging, and conveyor systems where precise torque transfer is required
This zero-backlash curved jaw coupling hub is made of aluminum with a 79.4 mm outside diameter. It is a metric component designed for motion control applications requiring precise torque transmission, such as servo systems, stepper motor drives, and linear actuators
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with a 79.4 mm outside diameter. It is a metric component designed for motion control applications requiring precise torque transmission, such as servo systems, stepper motor drives, and linear actuators
This zero-backlash curved jaw coupling hub is made of aluminum with an outside diameter of 2 3/4 inches. It is designed for JC44 coupling size and inch dimensions. Typical applications include connecting shafts in motion-control systems such as packaging, printing, and robotics equipment, where precise torque transmission and misalignment compensation are required
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with an outside diameter of 2 3/4 inches. It is designed for JC44 coupling size and inch dimensions. Typical applications include connecting shafts in motion-control systems such as packaging, printing, and robotics equipment, where precise torque transmission and misalignment compensation are required
Zero-backlash curved jaw coupling hub for motion control and power transmission systems. Made of aluminum with 1 5/16 in outside diameter. Designed for use with spider inserts to transmit torque without backlash, compensating for minor shaft misalignment
RULAND MANUFACTURING
Zero-backlash curved jaw coupling hub for motion control and power transmission systems. Made of aluminum with 1 5/16 in outside diameter. Designed for use with spider inserts to transmit torque without backlash, compensating for minor shaft misalignment
This zero-backlash curved jaw coupling hub from RULAND MANUFACTURING has a 2 3/4 in outside diameter and is made of aluminum. It is designed for inch-size shaft applications and accommodates minor misalignment in power transmission systems. The hub is part of the JC44 coupling size series
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub from RULAND MANUFACTURING has a 2 3/4 in outside diameter and is made of aluminum. It is designed for inch-size shaft applications and accommodates minor misalignment in power transmission systems. The hub is part of the JC44 coupling size series
This zero-backlash curved jaw coupling hub is part of the JS16 coupling size series, featuring a 1-inch outside diameter and constructed from aluminum. Designed for inch-type shaft connections, it provides accurate torque transmission while accommodating misalignment in motion control systems
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is part of the JS16 coupling size series, featuring a 1-inch outside diameter and constructed from aluminum. Designed for inch-type shaft connections, it provides accurate torque transmission while accommodating misalignment in motion control systems
Inch aluminum hub for zero-backlash curved jaw couplings. Outside diameter 2 1/4 in. Used to connect rotating shafts in motion-control systems, compensating for misalignment while transmitting torque
RULAND MANUFACTURING
Inch aluminum hub for zero-backlash curved jaw couplings. Outside diameter 2 1/4 in. Used to connect rotating shafts in motion-control systems, compensating for misalignment while transmitting torque