We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

3G Electric
RULAND MANUFACTURING zero backlash curved jaw coupling hub - Zero-Backlash Curved Jaw Coupling Hubs
RULAND MANUFACTURINGZero-Backlash Curved Jaw Coupling Hubs

Ruland Manufacturing Zero Backlash Curved Jaw Coupling Hub

111 sizes & variants — select below · Outside Dia: 18 options · Type: 3 options

This family comprises Ruland Manufacturing zero-backlash curved jaw coupling hubs, engineered for precision motion control applications requiring torque transmission without play. The hubs are available in a range of…

WhatsApp an engineerMessage via Telegram
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Common specifications

RULAND MANUFACTURING
Shared across the range — Outside Dia, Type vary by variant (see table below).
Manufacturer Part Number
MJS15-3-A

Technical Documents

No technical documents available for this product.
Request documentation
Select a size

Showing 111 / 111 variantsscroll the table for more

Part No (MPN)JC12-3-A3G SKU3G-OTH-134113Outside Dia3/4 inTypeInch, Aluminum
Part No (MPN)JCC16-6-A3G SKU3G-OTH-134115Outside Dia1 inTypeInch, Aluminum, Curved
Part No (MPN)JCC16-8-A3G SKU3G-OTH-134116Outside Dia1 inTypeInch, Aluminum, Curved
Part No (MPN)JS16-8-A3G SKU3G-OTH-134132Outside Dia1 inTypeInch, Aluminum, Curved
Part No (MPN)JS26-8-A3G SKU3G-OTH-134133Outside Dia1 5/8 inTypeInch, Aluminum
Part No (MPN)JS36-10-A3G SKU3G-OTH-134134Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJC25-7-A3G SKU3G-OTH-134135Outside Dia25.4 mmTypeMetric, Aluminum
Part No (MPN)MJC25-10-A3G SKU3G-OTH-134137Outside Dia25.4 mmTypeMetric, Aluminum
Part No (MPN)MJC33-12-A3G SKU3G-OTH-134141Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)MJCC33-16-A3G SKU3G-OTH-134143Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)MJCC41-15-A3G SKU3G-OTH-134148Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)MJCC41-17-A3G SKU3G-OTH-134151Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)MJC41-20-A3G SKU3G-OTH-134153Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)MJCC51-12-A3G SKU3G-OTH-134154Outside Dia50.8 mmTypeMetric, Aluminum
Part No (MPN)MJC51-14-A3G SKU3G-OTH-134156Outside Dia50.8 mmTypeMetric, Aluminum
Part No (MPN)MJC51-15-A3G SKU3G-OTH-134157Outside Dia50.8 mmTypeMetric, Aluminum
Part No (MPN)MJS15-5-A3G SKU3G-OTH-134166Outside Dia15 mmTypeMetric, Aluminum
Part No (MPN)MJS33-8-A3G SKU3G-OTH-134169Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)MJSC33-10-A3G SKU3G-OTH-134170Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)MJS33-12-A3G SKU3G-OTH-134171Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)MJS51-14-A3G SKU3G-OTH-134176Outside Dia50.8 mmTypeMetric, Aluminum
Part No (MPN)MJS57-14-A3G SKU3G-OTH-134179Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)MJS57-16-A3G SKU3G-OTH-134180Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)MJS57-25-A3G SKU3G-OTH-134181Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)JC44-16-A3G SKU3G-OTH-134182Outside Dia2 3/4 inTypeInch, Aluminum
Part No (MPN)JC36-18-A3G SKU3G-OTH-134185Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJS51-16-A3G SKU3G-OTH-134186Outside Dia50.8 mmTypeMetric, Aluminum
Part No (MPN)JCC36-18-A3G SKU3G-OTH-134187Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJS25-6-A3G SKU3G-OTH-134188Outside Dia25.4 mmTypeMetric, Aluminum
Part No (MPN)MJCC57-14-A3G SKU3G-OTH-134191Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)MJC19-7-A3G SKU3G-OTH-134197Outside Dia19.1 mmTypeMetric, Aluminum
Part No (MPN)JSC36-20-A3G SKU3G-OTH-134200Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJSC41-14-A3G SKU3G-OTH-134202Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)JSC26-8-A3G SKU3G-OTH-134203Outside Dia1 5/8 inTypeInch, Aluminum
Part No (MPN)JC50-18-A3G SKU3G-OTH-134206Outside Dia3 1/8 inTypeInch, Aluminum
Part No (MPN)JCC36-14-A3G SKU3G-OTH-134207Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJSC41-17-A3G SKU3G-OTH-134209Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)MJSC57-14-A3G SKU3G-OTH-134213Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)MJC25-12-A3G SKU3G-OTH-134220Outside Dia25.4 mmTypeMetric, Aluminum
Part No (MPN)MJS41-12-A3G SKU3G-OTH-134225Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)MJS15-6-A3G SKU3G-OTH-134228Outside Dia15 mmTypeMetric, Aluminum
Part No (MPN)MJS19-4-A3G SKU3G-OTH-134229Outside Dia19.1 mmTypeMetric, Aluminum
Part No (MPN)MJS41-14-A3G SKU3G-OTH-134230Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)JC50-24-A3G SKU3G-OTH-134237Outside Dia3 1/8 inTypeInch, Aluminum
Part No (MPN)MJC57-14-A3G SKU3G-OTH-134238Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)MJCC70-25-A3G SKU3G-OTH-134241Outside Dia69.9 mmTypeMetric, Aluminum
Part No (MPN)MJC57-17-A3G SKU3G-OTH-134245Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)JC12-5-A3G SKU3G-OTH-134252Outside Dia3/4 inTypeInch, Aluminum
Part No (MPN)JCC21-10-A3G SKU3G-OTH-134254Outside Dia1 5/16 inTypeInch, Aluminum
Part No (MPN)JS36-12-A3G SKU3G-OTH-134255Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJS19-8-A3G SKU3G-OTH-134256Outside Dia19.1 mmTypeMetric, Aluminum
Part No (MPN)MJS57-30-A3G SKU3G-OTH-134258Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)MJC57-24-A3G SKU3G-OTH-134260Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)MJCC51-24-A3G SKU3G-OTH-134261Outside Dia50.8 mmTypeMetric, Aluminum
Part No (MPN)MJSC57-19-A3G SKU3G-OTH-134262Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)JC44-18-A3G SKU3G-OTH-134263Outside Dia2 3/4 inTypeInch, Aluminum
Part No (MPN)JCC44-16-A3G SKU3G-OTH-134268Outside Dia2 3/4 inTypeInch, Aluminum
Part No (MPN)JCC44-22-A3G SKU3G-OTH-134271Outside Dia2 3/4 inTypeInch, Aluminum
Part No (MPN)MJC15-3-A3G SKU3G-OTH-134276Outside Dia15.1 mmTypeMetric, Aluminum
Part No (MPN)MJC25-8-A3G SKU3G-OTH-134282Outside Dia25.4 mmTypeMetric, Aluminum
Part No (MPN)JS36-18-A3G SKU3G-OTH-134287Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJS19-6-A3G SKU3G-OTH-134288Outside Dia19.1 mmTypeMetric, Aluminum
Part No (MPN)MJC57-20-A3G SKU3G-OTH-134291Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)MJC33-10-A3G SKU3G-OTH-134292Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)JCC36-20-A3G SKU3G-OTH-134293Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJS33-15-A3G SKU3G-OTH-134295Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)JC12-4-A3G SKU3G-OTH-134303Outside Dia3/4 inTypeInch, Aluminum
Part No (MPN)JSC16-8-A3G SKU3G-OTH-134306Outside Dia1 inTypeInch, Aluminum, Curved
Part No (MPN)JCC36-16-A3G SKU3G-OTH-134307Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJS41-16-A3G SKU3G-OTH-134309Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)MJC41-16-A3G SKU3G-OTH-134310Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)JC50-28-A3G SKU3G-OTH-134311Outside Dia3 1/8 inTypeInch, Aluminum
Part No (MPN)MJC51-17-A3G SKU3G-OTH-134313Outside Dia50.8 mmTypeMetric, Aluminum
Part No (MPN)MJCC33-12-A3G SKU3G-OTH-134320Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)JC50-16-A3G SKU3G-OTH-134321Outside Dia3 1/8 inTypeInch, Aluminum
Part No (MPN)JS32-12-A3G SKU3G-OTH-134326Outside Dia2 inTypeInch, Aluminum, Curved
Part No (MPN)JSC36-18-A3G SKU3G-OTH-134330Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJC15-6-A3G SKU3G-OTH-134333Outside Dia15.1 mmTypeMetric, Aluminum
Part No (MPN)MJS15-3-A3G SKU3G-OTH-134336Outside Dia15 mmTypeMetric, Aluminum
Part No (MPN)JCC32-10-A3G SKU3G-OTH-134337Outside Dia2 inTypeInch, Aluminum, Curved
Part No (MPN)MJS33-16-A3G SKU3G-OTH-134341Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)MJCC41-11-A3G SKU3G-OTH-134343Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)MJC33-9-A3G SKU3G-OTH-134345Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)JS10-3-A3G SKU3G-OTH-134346Outside Dia19/32 inTypeInch, Aluminum
Part No (MPN)MJC25-9-A3G SKU3G-OTH-134348Outside Dia25.4 mmTypeMetric, Aluminum
Part No (MPN)MJCC41-12-A3G SKU3G-OTH-134349Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)MJS25-12-A3G SKU3G-OTH-134352Outside Dia25.4 mmTypeMetric, Aluminum
Part No (MPN)JSC26-10-A3G SKU3G-OTH-134353Outside Dia1 5/8 inTypeInch, Aluminum
Part No (MPN)MJS57-20-A3G SKU3G-OTH-134355Outside Dia57.2 mmTypeMetric, Aluminum
Part No (MPN)MJS25-8-A3G SKU3G-OTH-134356Outside Dia25.4 mmTypeMetric, Aluminum
Part No (MPN)JSC36-10-A3G SKU3G-OTH-134357Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJC19-5-A3G SKU3G-OTH-134358Outside Dia19.1 mmTypeMetric, Aluminum
Part No (MPN)MJS19-5-A3G SKU3G-OTH-134361Outside Dia19.1 mmTypeMetric, Aluminum
Part No (MPN)JSC16-6-A3G SKU3G-OTH-134362Outside Dia1 inTypeInch, Aluminum, Curved
Part No (MPN)JS36-14-A3G SKU3G-OTH-134365Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJS51-25-A3G SKU3G-OTH-134367Outside Dia50.8 mmTypeMetric, Aluminum
Part No (MPN)MJSC33-12-A3G SKU3G-OTH-134370Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)JCC36-12-A3G SKU3G-OTH-134371Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)MJS41-20-A3G SKU3G-OTH-134376Outside Dia41.3 mmTypeMetric, Aluminum
Part No (MPN)JC10-4-A3G SKU3G-OTH-134380Outside Dia19/32 inTypeInch, Aluminum
Part No (MPN)MJS25-10-A3G SKU3G-OTH-134382Outside Dia25.4 mmTypeMetric, Aluminum
Part No (MPN)MJC33-15-A3G SKU3G-OTH-134383Outside Dia33.3 mmTypeMetric, Aluminum
Part No (MPN)JC44-20-A3G SKU3G-OTH-134386Outside Dia2 3/4 inTypeInch, Aluminum
Part No (MPN)MJC19-8-A3G SKU3G-OTH-134387Outside Dia19.1 mmTypeMetric, Aluminum
Part No (MPN)JCC50-18-A3G SKU3G-OTH-134391Outside Dia3 1/8 inTypeInch, Aluminum
Part No (MPN)JC50-20-A3G SKU3G-OTH-134392Outside Dia3 1/8 inTypeInch, Aluminum
Part No (MPN)JSC26-12-A3G SKU3G-OTH-134393Outside Dia1 5/8 inTypeInch, Aluminum
Part No (MPN)JS36-20-A3G SKU3G-OTH-134394Outside Dia2 1/4 inTypeInch, Aluminum
Part No (MPN)JC50-26-A3G SKU3G-OTH-134395Outside Dia3 1/8 inTypeInch, Aluminum
Part No (MPN)JSC32-12-A3G SKU3G-OTH-134396Outside Dia2 inTypeInch, Aluminum, Curved
Part No (MPN)JSC32-10-A3G SKU3G-OTH-134397Outside Dia2 inTypeInch, Aluminum, Curved
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

Frequently Asked Questions

How do I choose the right hub size?

Start by measuring your shaft diameter and the space available for the coupling. Then, refer to the outside diameter range (3/4 in to 3 1/8 in, or 15 mm and 50.8 mm) to find a hub that fits. Ensure the hub's bore size matches your shaft.

What material options are available?

The hubs come in aluminum and inch-based variants. Aluminum is lighter and reduces rotational inertia, while inch variants may offer different strength or compatibility with inch-sized shafts.

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first

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

More from RULAND MANUFACTURING

View all RULAND MANUFACTURING parts
This clamp-on beam shaft coupling accommodates up to 3° angular misalignment and is suited for motion control applications requiring precise shaft alignment and torque transmission. It features a 10 mm round bore with same bore dimensions, metric sizing, and no keyway. The coupling is made of aluminum
RULAND MANUFACTURING
This clamp-on beam shaft coupling accommodates up to 3° angular misalignment and is suited for motion control applications requiring precise shaft alignment and torque transmission. It features a 10 mm round bore with same bore dimensions, metric sizing, and no keyway. The coupling is made of aluminum
This one-piece rigid shaft coupling from RULAND MANUFACTURING features two 15 mm bores with round keyways and a clamp-on design. It is used to connect two shafts in precise alignment for motion control applications, providing zero backlash and high torque transmission. Suitable for industrial machinery, robotics, and automation systems
RULAND MANUFACTURING
This one-piece rigid shaft coupling from RULAND MANUFACTURING features two 15 mm bores with round keyways and a clamp-on design. It is used to connect two shafts in precise alignment for motion control applications, providing zero backlash and high torque transmission. Suitable for industrial machinery, robotics, and automation systems
One-piece rigid shaft coupling with 1 in bore diameter for both bore 1 and bore 2, designed for round shafts. No keyway. Provides zero-backlash torque transmission in precision motion-control applications such as encoders, linear actuators, and positioning tables
RULAND MANUFACTURING
One-piece rigid shaft coupling with 1 in bore diameter for both bore 1 and bore 2, designed for round shafts. No keyway. Provides zero-backlash torque transmission in precision motion-control applications such as encoders, linear actuators, and positioning tables
This inch-series beam coupling features a 5/16 in bore diameter on one side and accommodates 3° angular misalignment. It is constructed with a set screw design for secure shaft attachment. Suitable for motion control applications requiring precise shaft alignment
RULAND MANUFACTURING
This inch-series beam coupling features a 5/16 in bore diameter on one side and accommodates 3° angular misalignment. It is constructed with a set screw design for secure shaft attachment. Suitable for motion control applications requiring precise shaft alignment
This inch-sized beam coupling from RULAND MANUFACTURING features a 3/16 in bore diameter on both ends and is secured with set screws. It accommodates up to 3° of angular misalignment and has no keyway. Typical applications include connecting shafts in motion control systems where precise torque transmission and misalignment compensation are required
RULAND MANUFACTURING
This inch-sized beam coupling from RULAND MANUFACTURING features a 3/16 in bore diameter on both ends and is secured with set screws. It accommodates up to 3° of angular misalignment and has no keyway. Typical applications include connecting shafts in motion control systems where precise torque transmission and misalignment compensation are required
This high-precision set screw beam shaft coupling is made of aluminum and features a 9 mm bore diameter 1. It accommodates up to 3° angular misalignment, making it suitable for motion control applications requiring precise shaft alignment and torque transmission
RULAND MANUFACTURING
This high-precision set screw beam shaft coupling is made of aluminum and features a 9 mm bore diameter 1. It accommodates up to 3° angular misalignment, making it suitable for motion control applications requiring precise shaft alignment and torque transmission
Metric, round-body set screw beam coupling with 10 mm bore diameter 1. Accommodates up to 3° angular misalignment. Used in motion control applications requiring precise shaft alignment, such as servo motors and encoders
RULAND MANUFACTURING
Metric, round-body set screw beam coupling with 10 mm bore diameter 1. Accommodates up to 3° angular misalignment. Used in motion control applications requiring precise shaft alignment, such as servo motors and encoders
This high-precision set screw beam shaft coupling accommodates up to 3° angular misalignment. It features an 11 mm bore diameter 1, a round metric design, and is constructed from aluminum. Suitable for connecting shafts in motion control applications such as servo motors, encoders, and linear actuators
RULAND MANUFACTURING
This high-precision set screw beam shaft coupling accommodates up to 3° angular misalignment. It features an 11 mm bore diameter 1, a round metric design, and is constructed from aluminum. Suitable for connecting shafts in motion control applications such as servo motors, encoders, and linear actuators