Description

Jaw Coupling Hub, Bore Size 14 mm, Aluminum, Set Screw Style Ruland MJS51-14-A 

This Aluminum Curved Jaw Coupling Hub is designed to help connect two shafts together. A complete assembly requires two hubs and one jaw coupling spider, available separately.

Ruland MJS51-14-A is a set screw zero-backlash jaw coupling hub with a 14mm bore, 50.8mm OD, and 20.8mm length. It is a component in a three-piece design consisting of two aluminum hubs and an elastomeric insert called the spider creating a lightweight low inertia coupling capable of speeds up to 8,000 RPM. This three-piece design allows for a highly customizable coupling that easily combines clamp or set screw hubs with inch, metric, keyed, and keyless bores. Spiders are available in three durometers allowing the user to tailor coupling performance to their application. Ruland jaw couplings have a balanced design for reduced vibration at high speeds. Hardware is metric and tests beyond DIN 912 12.9 standards for maximum torque capabilities. MJS51-14-A is machined from bar stock that is sourced exclusively from North American mills and is RoHS3 and REACH compliant. It is manufactured in our Marlborough, MA factory under strict controls using proprietary processes.

DIMENSIONS

Bore (B1)             14 mm  B1     Max Shaft Penetration       20.8 mm

Outer Diameter (OD)     2.000 in (50.8 mm)          Bore Tolerance +0.03 mm / -0.00 mm

Hub Width (LH) 20.8 mm              Length (L)            2.400 in (61.0 mm)

Recommended Shaft Tolerance                   +0.000 mm / -0.013 mm                           

FASTENING HARDWARE

Forged Set Screw             M6         Number of Screws           2 ea 90° apart

Screw Material Alloy Steel          Screw Finish       Black Oxide

Hex Wrench Size              3.0 mm Seating Torque 7.2 Nm

PERFORMANCE SPECIFICATIONS

Torque Specifications    Torque ratings vary with insert selection               Misalignment:   Misalignment ratings vary with insert selection

Maximum Speed             8,000 RPM          Recommended Inserts JD32/51-98R, JD32/51-92Y

ADDITIONAL INFORMATION

Weight (lbs)       0.271900              Temperature     -10°F to 180°F (-23°C to 82°C)

Material Specification   2024-T351 Aluminum Bar             Finish    Bright

Finish Specification         Bright, No Plating            Manufacturer    Ruland Manufacturing

UPC       634529068205    Country of Origin             USA

Tariff Code         8483.60.8000                     

PRODUCT NOTES

Note 1   Stainless steel hubs are available upon request.               Note 2   Performance ratings are for guidance only. The user must determine suitability for a particular application.

Note 3   Torque ratings for the couplings are based on the physical limitations/failure point of the spiders. Under normal/typical conditions the hubs are capable of holding up to the nominal torque of the spiders. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the nominal torque of the spiders. Keyways are available to provide additional torque capacity in the shaft/hub connection when required.

CERTIFICATIONS/STANDARDS

ISO 9001:2015    Certified

Conflict Minerals             Compliant

RoHS3   Compliant

REACH  Compliant


We ship Items Monday - Saturday 

Fast & Free by USPS Priority or FedEx, and usually within 1 day of receiving payment.

Delivery time is 2-5 business days

Terms of Feedback:

  • Feedback is extremely important to us and eBay
  • If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority!
  • If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns.
  • We PROMISE we can make you happy if you give us a fair chance.


Thank You For Your Business!