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This arrangement is specifically designed for the pump industry and is available in a variety of industry standard shaft separations. The shaft center spacer drops out to facilitate easier maintenance of pump parts without disturbing the alignment of pump and motor. Spacer type couplings utilize either standard delta hubs or optional round hubs. The center member of the Deltaflex is captured by the construction of the spacer flanges for greater safety. Standard spacer drop out lengths are available to accommodate shaft separations of 3.50, 4.38, 5, 7, 10, 12 and 15 inches. Special spacer lengths and stainless steel spacer couplings are available as an option.

Type 3 (Spacer Type) Deltaflex coupling are comprised of two hubs, two spacer flanges (with hardware), and a dropout spacer.

 
Unit of Measure

Specifications

Description 

 N/A 50-DLT DROPOUT-BSE=4.375

Hub Style

 N/A Delta

Coupling Type

 N/A Flex-Link

Material

 N/A All-Metal

Color

 N/A Metallic

Weight

 N/A 6.37 lb

Dimensional Data

Size

 N/A 050

Keyway Size (W x D)

 N/A No Keyway

Length thru Bore

 N/A 4.375 in111.13 mm

Overall Length

 N/A 7.720 in196.00 mm

Outside Diameter

 N/A 6.180 in

Max. Bore for Delta Hubs (Dimensions ID1/ID2)

 N/A 1.875 in48.00 mm

Dimension BC

 N/A 3.080 in78.23 mm

Dimension BE

 N/A 4.375 in111.00 mm

Dimension P

 N/A 1.998 to 2.000 in50.749 to 50.800 mm

Dimension Q

 N/A 0.090 in2.29 mm

Dimension R

 N/A 0.810 in20.57 mm

Dimension S

 N/A 2.750 in70 mm

Dimension TH (Axial Cap / Screw Tap)

 N/A 5/16-18 x 0.75

Cubic inches

 N/A 167.09175 in³

Performance Data

Max. Continuous Torque

 N/A 1900.00 in·lb

Peak Overload Torque

 N/A 2850.00 in·lb

Rated HP at 100 rpm

 N/A 3.00 hp

Rated HP at 875 rpm (Standard Motor)

 N/A 26.20 hp

Rated HP at 1,150 rpm (Standard Motor)

 N/A 34.00 hp

Rated HP at 1,750 rpm (Standard Motor)

 N/A 52.40 hp

Rated HP at 3,500 rpm (Standard Motor)

 N/A 105.00 hp

Coupling Design

Coupling Design

 N/A
    The Deltaflex coupling is the real solution to installation, misalignment, and performance problems. Conventional couplings – even when carefully aligned to the manufacturer’s specifications – cannot match the low level of vibration, moment of inertia, and additional cushion for future misalignment of a visually aligned Deltaflex coupling.
    In addition, the Deltaflex coupling gives longer life to equipment shaft bearings. That means longer operating time and reduced maintenance cost. The Deltaflex can handle greater shaft misalignment without generating heavy reaction loads on the equipment shaft bearings.
    A properly applied and installed Deltaflex coupling offers more equipment protection compared to conventional couplings.

Features

Features 

 N/A
  • Maximum misalignment capabilities, with negligible reactionary load, for longer equipment bearing life
  • Operates as smoothly when misaligned as when perfectly aligned
  • No lubrication and no maintenance required
  • Equipment can be visually aligned. No special tools are required, which saves on installation time and cost
  • Eliminates premature equipment bearing and seal failure resulting from misalignment forces. This means greater equipment productivity
  • Torsionally stiff coupling with no backlash means it is capable of high speed applications, within catalog ratings
  • Provides long-term performance and economy
  • Available in 5 basic sizes, from 10HP to 900HP
  • Standard all-metal and stainless steel versions are both available from stock
  • Many configurations are available, including shaft-to-shaft, spacer, floating shaft, and special assemblies

Notes

Notes 

 N/A
  • Size 50: In some bore sizes the tap is 5/8-18.
  • Maximum bores are provided with standard keyway.
  • RSB hubs do not have a keyway.
  • Both Delta hubs and Round hubs are provided with two set screws at 120°.
  • Minimum bore hubs are furnished with 2 set screws at 120°, No Keyway.
  • S is the Spacer drop out or floating shaft length, S = BE-2(R).
  • LTB is the length through the hub bore. OAL is the overall length, OAL = BE + 2(LTB).
  • BE is the distance between the ends of equipment shafts—please supply this dimension when placing orders, BE = OAL-2 (LTB), BE = S + 2 (R), BE < 18 inch = Spacer coupling (Type 3); BE > 18 inch = Floating Shaft coupling (Type 4). ED
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