Montage of Timken Bearing Products 
Search Catalog
        
 All Product Types    RRU Type Hubs with Keyway - Inch (Imperial) Bores
View Cart View RFQs Express Ordering  | Shipping 
 | Tax 
 | Terms
 Shopping Cart 0 Items
 Request for Quote 0 Items
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 68514446480  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites
Add To Cart Request Quote

Part Number 68514446480, 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 
RRU75-HUB-3/4-3/16X3/32KW

Hub Style
RRU Hub

Coupling Type
Drop-Out

Material
Steel

Color
Gray/Metallic

Bore Type
Finished Bore

Weight
0.90 lb


Dimensional Data

Bore Size 
3/4 in

Coupling
RRU75

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

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

Overall Length
4.270 in
108.46 mm

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

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

Dimension BC
2.000 in
50.80 mm

Dimension D
2.380 in
60.45 mm

Dimension FD
2.500 in
63.50 mm

Dimension FL1
0.380 in
9.65 mm

Dimension HD
2.500 in
63.50 mm

Dimension HL
1.250 in
31.75 mm

Dimension S
1.810 in
45.97 mm

Pin Location (Dimension SL)
0.620 in

Pin Size
1/8 in

Cubic inches
7.81250 in³


Performance Data

Max. Torque
175.00 in·lb

Max. Speed
20000.00 rpm

Max. Recommended End Play
0.040 in
1.02 mm

Max. Parallel Offset
0.028 in
0.71 mm

Max. Angular Offset
4.50 º

Wind-Up Angle at Max. Torque
1.82 º

Rated HP at 100 rpm
0.28 hp

# of Set Screws Required per Hub
1

Normal Temperature Range
-40 to 240 ºF

Max. Torque
175 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
(PDF, 0KB)

Uniflex Installation Instructions
(PDF, 0KB)


Add To Cart Request Quote
<