Ruland DCD12-5-4-A Disc Coupling

$104.48

Ruland DCD12-5-4-A Disc Coupling

Dimensions
Bore (B1) 0.3125 inSmall Bore (B2) 0.2500 in
B1 Min Shaft Penetration 0.270 inB2 Min Shaft Penetration 0.270 in
B1 Max Shaft Penetration 0.573 inB2 Max Shaft Penetration 0.573 in
Outer Diameter (OD)0.750 in (19.1 mm)Bore Tolerance +0.001 in / -0.000 in
Length (L)1.189 in (30.2 mm)Hub Width (LH)0.418 in
Recommended Shaft Tolerance +0.0000 in / -0.0005 in
Fastening Hardware
Forged Clamp Screw M2.5Screw MaterialAlloy Steel
Hex Wrench Size 2.0 mmScrew Finish Black Oxide
Seating Torque 1.21 NmNumber of Screws2 ea
Performance Specifications
Dynamic Torque Reversing 6.25 lb-inAngular Misalignment 2.0°
Dynamic Torque Non-Reversing 12.5 lb-inParallel Misalignment 0.004 in
Static Torque 25 lb-inAxial Motion 0.008 in
Torsional Stiffness 51 lb-in/DegMoment of Inertia0.0033 lb-in2
Maximum Speed10,000 RPMFull Bearing Support Required? Yes
Zero-Backlash? YesBalanced Design Yes
Recommended Installation Tools
Torque Wrench TW:BT-1R-1/4-10.7Recommended Hex Key Metric Hex Keys
Additional Information
Material SpecificationHubs and Center Spacer: 2024-T351 Aluminum Bar
Disc Springs: Type 302 Stainless Steel
Temperature -40°F to 200°F (-40°C to 93°C)
Finish Specification Sulfuric Anodized MIL-A-8625 Type II, Class 2 and ASTM B580 Type B Black AnodizeManufacturerRuland Manufacturing
Country of OriginUSAWeight (lbs)0.040800
UPC634529081587Tariff Code8483.60.8000
UNSPC 31163008