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 68514452745  

Part Number 68514452745, 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 
RRU137-HDWR PKG

Type
Drop-Out

Material
Steel

# of Mounting Screws Required
1

Weight
0.25 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
RRU137

Set Screw Size
3/8-16

Overall Length
6.530 in
165.86 mm

Pin Size
0.375 in

Pin Location (Dimension SL)
0.69 in

Min. Bore (Dimensions ID1/ID2)
0.625 in
16.00 mm

Max. Bore (Dimensions ID1/ID2)
1.875 in
48.00 mm

Dimension BC
3.750 in
95.25 mm

Dimension D
4.250 in
107.95 mm

Flange Diameter (Dimension FD)
4.380 in
111.25 mm

Dimension FL
0.500 in
12.70 mm

Dimension FL1
0.500 in
12.70 mm

Dimension HL
1.880 in
47.75 mm

Dimension S
2.810 in
71.37 mm


Performance Data of Related Coupling

Max. Torque
1260.00 in·lb
142.40 N·m

Speed
6000 rpm

Max. Angular Offset
3.00 º

Max. Parallel Offset
0.035 in
0.89 mm

Wind-Up Angle at Max. Torque
1.85 º

Max. Recommended End Play
0.040 in
1.02 mm

Rated HP at 100 rpm
2.02 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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