MDCSK33-15-15-A

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Ruland MDCSK33-15-15-A, 15mm x 15mm Single Disc Coupling, Aluminum, Clamp Style With Keyway, 33.3mm OD, 33.3mm Length

PRODUCT SPECIFICATIONS

Ruland MDCSK33-15-15-A is a single disc coupling with 15mm x 15mm bores, 33.3mm OD, 33.3mm length, and 5mm x 5mm keyways. It is zero-backlash and has a balanced design for reduced vibration at high speeds. The single disc design is comprised of two anodized aluminum hubs and two sets of thin stainless steel disc springs which can accommodate angular misalignment and axial motion, however does not allow for any parallel misalignment. MDCSK33-15-15-A is lightweight and has low inertia making it well suited for applications with speeds up to 10,000 RPM. Hardware is metric and tests beyond DIN 912 12.9 standards for maximum torque capabilities. Ruland manufactures MDCSK33-15-15-A to be torisionally rigid and an excellent fit for precise positioning stepper servo applications commonly found in semiconductor, solar, printing, machine tool, and test and measurement systems. It is machined from solid bar stock that is sourced exclusively from North American mills and RoHS2 and REACH compliant. MDCSK33-15-15-A is manufactured in our Marlborough, MA factory under strict controls using proprietary processes.

PRODUCT SPECIFICATIONS

Dimensions

Large Bore B1

15 mm

Small Bore B2

15 mm

Keyway K

5 mm

Keyway K2

5 mm

B1 Shaft Penetration

16.1 mm

B2 Shaft Penetration

16.1 mm

Outer Diameter OD

33.3 mm

Bore Tolerance

+.03 mm / -.00 mm

Length L

33.3 mm

Hub Width LH

15.0 mm

Fastening Hardware

Forged Clamp Screw

M3

Screw Material

Alloy Steel

Hex Wrench Size

2.5 mm

Screw Finish

Black Oxide

Seating Torque

2.1 Nm

Number of Screws

2 ea

Performance Specifications

Static Torque

11.3 Nm

Angular Misalignment

1.0°

Dynamic Torque Non-Reversing

5.65 Nm

Parallel Misalignment

0.00 mm

Dynamic Torque Reversing

2.83 Nm

Axial Motion

0.20 mm

Torsional Stiffness

35.4 Nm/Deg

Maximum Speed

10,000 RPM

Additional Information

Material Specification

Hubs: 2024-T351 Aluminum Bar, Disc Springs: Type 302 Stainless Steel

Temperature

-10°F to 200°F
-23°C to 93°C

Finish Specification

Sulfuric Anodized MIL-A-8625 Type II, Class 2 and ASTM B580 Type B Black Anodize

Manufacturer

Ruland Manufacturing

Country of Origin

USA

Weight (lbs.)

0.1650

UPC

63452920183

Product Notes

Note 1

Stainless steel hubs are available upon request.

Note 2

Torque ratings are at maximum misalignment.

Note 3

Performance ratings are for guidance only. The user must determine suitability for a particular application.

Note 4

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

Prop 65

WARNING This product can expose you to chemicals including Ethylene Thiourea and Nickel (metallic), known to the State of California to cause cancer, and Ethylene Thiourea known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

CERTIFICATIONS/STANDARDS
ISO 9001:2015

Certified

Conflict Minerals

Compliant

RoHS3

Compliant

REACH

Compliant

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