MJSC51-18-A
$127.20
ea
Ruland MJSC51-18-A, 18mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 50.8mm OD, 20.8mm Length
PRODUCT SPECIFICATIONS
Ruland MJSC51-18-A is a zero-backlash jaw coupling hub with a18mm bore, 6mm keyway, 50.8mm OD, and 20.8mm length. It is a component in a three-piece design consisiting 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 the performance of the coupling 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. MJSC51-18-A is machined from bar stock that is sourced exclusively from North American mills and is RoHS2 and REACH compliant. It is manufactured in our Marlborough, MA factory under strict controls using proprietary processes.
PRODUCT SPECIFICATIONS
| Dimensions | |||
|---|---|---|---|
Bore B |
18 mm |
B1 Shaft Penetration |
20.8 mm |
Keyway K |
6 mm |
Outer Diameter OD |
50.8 mm |
Bore Tolerance |
+.03 mm / -.00 mm |
Hub Width LH |
20.8 mm |
Length L |
61.0 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 | |||
Maximum Speed |
8,000 RPM |
||
| Additional Information | |||
Weight (lbs.) |
0.2820 |
Temperature |
-10°F to 180°F |
Material Specification |
2024-T351 Aluminum Bar |
Finish |
Bright |
Finish Specification |
Bright |
Manufacturer |
Ruland Manufacturing |
UPC |
63452912462 |
Country of Origin |
USA |
| 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. Please consult technical support for more assistance. |
Prop 65 |
|
WARNING This product can expose you to the chemical Ethylene Thiourea, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
