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 1.375

Driven Shaft Size [in]

 N/A 0

Shaft Separation [in]

 N/A 0

Motor Rating [HP]

 N/A 1.0

Shaft RPM

 N/A 15

Ambient Temperature [°F]

 N/A < 212

Service Factor is known?

 N/A No

Actual Torque [in-lbs]

 N/A 4202

Design Torque [in-lbs]

 N/A 0

Stainless Steel Options

 N/A None

Interference Fit

 N/A No

Coupling Max RPM

 N/A 7000

Axial Misalignment [in]

 N/A 0.116

Angular Misalignment [°]

 N/A 2

Radial Misalignment [in]

 N/A 0.039

Assembly Image

 N/A
QFSTDSTD

Insert Image

 N/A
QFINSERT

Cover Image

 N/A
QFSTDCOVER

Hub (x1)

 N/A QF25X0

Hub (x1)

 N/A QF25X1.375

Cover (x1)

 N/A QF25COVER

Insert (x1)

 N/A QF25BINSERT

Spacer Type

 N/A No Spacer

Weight [lb]

 N/A 11

Weight (Insert) [lb]

 N/A 0.3

Other Dimensions

A [in]

 N/A 4.86

A (Cover) [in]

 N/A 2.61

B (Cover) [in]

 N/A 5.34

C [in]

 N/A 2.06

D1 [in]

 N/A 4.21

D1 (Cover) [in]

 N/A 4.21

D2 [in]

 N/A 3.19

D3 [in]

 N/A 3.37

E (Cover) [in]

 N/A 1.95

F [in]

 N/A 1.81

Gmax [in]

 N/A .13

Gmin [in]

 N/A .1

H [in]

 N/A 2.39

L (Insert) [in]

 N/A 2.16

L1 [in]

 N/A 1.42

M (Insert) [in]

 N/A 3.8

N (Insert) [in]

 N/A 1.23

P [in]

 N/A 1.95

X [in]

 N/A 1.21