All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > Specialty Products - Uniflex, Saga, Rigid Sleeve, Shaft Collars > Uniflex Couplings > RRU Type Hardware > Part Number 68514452741  

Part Number 68514452741, RRU Type Hardware

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RRU Type - Drop-Out Style
    The RRU Type Uniflex coupling is designed for fast, easy installation and removal without disrupting the connected shafts. This is ideal when servicing impellers, bearings and seals. The design consists of two steel hubs fastened with cap screws to a Uniflex double flange coupling (UF Type). The RRU is easily disassembled by simply removing the cap screws and sliding out the UF center spring section.
    This design offers “quick disconnect” for drop out requirements. It can also accommodate a slightly larger shaft diameter than the standard U Type.
    Note: A complete RRU Type coupling is comprised of 2 hubs, 2 hardware kits, and a UF Type center drop out section.




Specifications  · Dimensional Data  · Dimensional Data of Related Coupling  · Performance Data of Related Coupling  · Coupling Design  · Notes

Specifications

Description 
RRU75-HDWR PKG

Type
Drop-Out

Material
Steel

# of Mounting Screws Required
1

Weight
0.06 lb


Dimensional Data

Height
3.00 in

Depth
1.00 in

Width
5.00 in

Cubic inches
15.00000 in³


Dimensional Data of Related Coupling

Size
RRU75

Set Screw Size
1/4-20

Overall Length
4.270 in
108.46 mm

Pin Size
0.125 in

Pin Location (Dimension SL)
0.62 in

Min. Bore (Dimensions ID1/ID2)
0.375 in
10.00 mm

Max. Bore (Dimensions ID1/ID2)
1.25 in
32.00 mm

Dimension BC
2.000 in
50.80 mm

Dimension D
2.380 in
60.45 mm

Flange Diameter (Dimension FD)
2.500 in
63.50 mm

Dimension FL1
0.380 in
9.65 mm

Dimension HL
1.250 in
31.75 mm

Dimension S
1.810 in
45.97 mm


Performance Data of Related Coupling

Max. Torque
175.00 in·lb
19.80 N·m

Speed
20000.00 rpm

Max. Angular Offset
4.50 º

Max. Parallel Offset
0.028 in
0.71 mm

Wind-Up Angle at Max. Torque
1.82 º

Max. Recommended End Play
0.040 in
1.02 mm

Rated HP at 100 rpm
0.28 hp


Coupling Design
Flexible Spring Type Coupling with Exclusive Triple Wound Spring Design
    The Uniflex Coupling is an all steel, single piece coupling that solves a variety of application concerns including: high misalignment, space limitations, high temperature, and exceptionally low backlash/windup. The unique flexing center of the Uniflex consists of three opposingly wound square wire springs for forward or reverse operation. Two steel hubs are then brazed to the steel spring pack to create a durable one-piece flexible coupling.




Notes

Notes 
  • OAL Tolerance + .19 inch.
  • Total backlash is approximately 1/3 of windup at maximum torque – consult Lovejoy Engineering for more information.


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Specialty Products Catalog
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Uniflex Installation Instructions
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