Quick-Flex Elastomeric Couplings
Durability for the Long Haul

Quick-Flex elastomeric couplings are durable enough to perform in harsh environments, yet need minimal maintenance. This type of coupling is easy to install and requires no lubrication. The insert can be changed without removing the hubs. Thanks to the versatility of the design, elastomeric couplings are direct replacements for most comparable couplings.

Click here to configure your Quick-Flex Elastomeric Coupling.

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Unit of Measure

Key Dimensions

Units of Measurement

N/A Imperial

Drive Shaft Size [in]

 N/A 3.625

Driven Shaft Size [in]

 N/A 3.875

Shaft Separation [in]

 N/A 0

Motor Rating [HP]

 N/A 5

Shaft RPM

 N/A 1

Ambient Temperature [°F]

 N/A < 212

Service Factor is known?

 N/A No

Actual Torque [in-lbs]

 N/A 315125

Design Torque [in-lbs]

 N/A 0

Stainless Steel Options

 N/A None

Interference Fit

 N/A No

Coupling Max RPM

 N/A 2400

Axial Misalignment [in]

 N/A 0.234

Angular Misalignment [°]

 N/A 1

Radial Misalignment [in]

 N/A 0.058

Assembly Image

 N/A
QFSTDVSP

Insert Image

 N/A
QFINSERT

Cover Image

 N/A
QFVSPCOVER

Hub (x1)

 N/A QF1890X3.875

Hub (x1)

 N/A QF1890X3.625

Cover (x1)

 N/A QF1890VSPCOVER

Insert (x1)

 N/A QF1890BINSERT

Spacer Type

 N/A No Spacer

Weight [lb]

 N/A 410

Weight (Insert) [lb]

 N/A 9

Other Dimensions

A [in]

 N/A 14.86

A (Cover) [in]

 N/A 7.32

B (Cover) [in]

 N/A 17.75

C [in]

 N/A 5.96

C (Cover) [in]

 N/A 14.75

D1 [in]

 N/A 17.75

D2 [in]

 N/A 9.5

D3 [in]

 N/A 12.8

F [in]

 N/A 5.74

Gmax [in]

 N/A .397

Gmin [in]

 N/A .288

H [in]

 N/A 7.26

L (Insert) [in]

 N/A 7.6

L1 [in]

 N/A 4.45

M (Insert) [in]

 N/A 13.61

N (Insert) [in]

 N/A 3.24

P [in]

 N/A 7.32

X [in]

 N/A 3.35