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All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > Specialty Products - Deltaflex, Uniflex, Saga, Rigid Sleeve, Shaft Collars > Uniflex Couplings > RRU Type Hubs with Keyway - Inch (Imperial) Bores > Part Number 68514444209  
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Part Number 68514444209, RRU Type Hubs with Keyway - Inch (Imperial) Bores


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.



Unit of Measure: Imperial Metric Both

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

Specifications

Description 
RRU50-HUB-5/8-3/16X3/32KW

Hub Style
RRU Hub

Coupling Type
Drop-Out

Material
Steel

Color
Gray/Metallic

Bore Type
Finished Bore

Weight
0.60 lb


Dimensional Data

Bore Size 
5/8 in

Coupling
RRU50

Set Screw Thread Size (Dimension T)
1/4-20

Keyway Size (W x D)
3/16 x 3/32 in

Overall Length
3.520 in
89.41 mm

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

Max. Bore (Dimensions ID1/ID2)
1.000 in
25.40 mm

Dimension BC
1.500 in
38.10 mm

Dimension D
1.880 in
47.75 mm

Dimension FD
2.000 in
50.80 mm

Dimension FL1
0.250 in
6.35 mm

Dimension HD
2.000 in
50.80 mm

Dimension HL
1.000 in
25.40 mm

Dimension S
1.560 in
39.62 mm

Pin Location (Dimension SL)
0.500 in

Pin Size
1/8 in

Cubic inches
4.00000 in³


Performance Data

Max. Torque
82.00 in·lb

Max. Speed
30000.00 rpm

Max. Recommended End Play
0.035 in
0.89 mm

Max. Parallel Offset
0.021 in
0.53 mm

Max. Angular Offset
4.50 º

Wind-Up Angle at Max. Torque
1.82 º

Rated HP at 100 rpm
0.13 hp

# of Set Screws Required per Hub
1

Normal Temperature Range
-40 to 240 ºF

Max. Torque
82 in·lb


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.


 DOWNLOADS 

Specialty Products Catalog
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Uniflex Installation Instructions
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