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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.
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RRU Type Uniflex Coupling Hubs w/ Keyway, Drop-Out Style - Imperial

RRU Type Hubs - Rough Stock Bore
RRU Type Uniflex Coupling Hubs w/ Keyway, Drop-Out Style - Imperial

RRU Type Hubs - Rough Stock Bore
Description  N/A RRU100-HUB-7/16 RSB N/A RRU150-HUB-3/4 RSB
Bore Size  N/A 7/16 in N/A 3/4 in
Hub Style N/A RRU Hub
Coupling Type N/A Drop-Out
Coupling N/A RRU100 N/A RRU150
Material N/A Steel
Set Screw Thread Size (Dimension T) N/A No Setscrew
Keyway Size (W x D) N/A No Keyway
Overall Length N/A 4.900 in124.46 mm N/A 7.660 in194.56 mm
Color N/A Gray/Metallic
Max. Torque N/A 565.00 in·lb N/A 1890.00 in·lb
Bore Type N/A Rough Stock Bore
Weight N/A 3.00 lb N/A 10.00 lb
Min. Bore (Dimensions ID1/ID2) N/A 0.438 in11.13 mm N/A 0.750 in19.05 mm
Max. Bore (Dimensions ID1/ID2) N/A 1.375 in34.93 mm N/A 2.125 in53.98 mm
Max. Speed N/A 6000 rpm N/A 3000 rpm
Dimension BC N/A 2.680 in68.07 mm N/A 4.380 in111.25 mm
Dimension D N/A 3.120 in79.25 mm N/A 5.000 in127.00 mm
Flange Diameter (Dimension FD) N/A 3.250 in82.55 mm N/A 5.380 in136.65 mm
Dimension FL N/A 0.500 in12.70 mm N/A 0.620 in15.75 mm
Dimension FL1 N/A 0.380 in9.65 mm N/A 0.500 in12.70 mm
Dimension HD N/A 2.310 in58.67 mm N/A 3.75 in95.25 mm
Dimension HL N/A 1.380 in35.05 mm N/A 2.120 in53.85 mm
Dimension S N/A 2.180 in55.37 mm N/A 3.440 in87.38 mm
Pin Location (Dimension SL) N/A 0.440 in N/A 0.820 in
Pin Size N/A 5/16 in N/A 3/8 in
Max. Recommended End Play N/A 0.040 in1.02 mm
Max. Parallel Offset N/A 0.030 in0.76 mm N/A 0.041 in1.04 mm
Max. Angular Offset N/A 3.00 º
Wind-Up Angle at Max. Torque N/A 1.03 º N/A 0.85 º
Rated HP at 100 rpm N/A 0.90 hp N/A 3.02 hp
# of Set Screws Required per Hub N/A 1
Cubic inches N/A 14.57625 in³ N/A 61.36213 in³
Normal Temperature Range N/A -40 to 240 ºF
Max. Torque N/A 63.8 N·m565 in·lb N/A 213.5 N·m1890 in·lb