/Coupling Preselection Guide
Coupling Preselection Guide2018-04-12T16:54:57+00:00

Coupling Preselection Guide

Excellent, Good, Fair and Poor are relative ratings.

Selection Criterion

COUPLING TYPE

Jaw

S-Flex

Motion
Control

Nylon Sleeve Gear

Gear

Grid

Disc

Deltaflex

Uniflex

Torsional
(Donut)

SAGA

Universal Joints

Shaft Size Range

– inch (mm)

.125 to

7.00

(4 to 178)

.375 to
5.50

(9 to 140)

.125 to
.50

(3 to 12)

.313 to
1.625

(8 to 41)

.625 to

54.0

(15 to 1372)

.500 to

16.313
(14 to 14)

0 to

15.94

(0 to 400)

.438 to

5

(11 to 127)

.125 to
1.50

(3 to 38)

.31 to

5.00

(7 to 130)

1.188 to

4.750

(30 to 120.65)

.250 to

2.00

(6 to 50)

Torque Range

– in-lbs (Nm)

3.5 to

170,000

(10.4 to 19 209)

60 to

72,480

(6.78 to
8 189)

1.35 to

16.5

(0.2 to 1.9)

162 to

1,420

(18 to 160)

2,520 to

54,390,000

(284 to
6 144 982)

422 to

2,700,000

(48 to
306 000)

504 to

7,699,500

(57 to
870 000)

750 to

33,000

(84 to
3 728)

18 to

1,890

(2 to 213.5)

88 to

44,200

(10 to
5 000)

350 to

20,000

(40 to 22.6)

110 to

65,400
(12 to
7 389)

Maximum Angular
Misalignment Capability (Degrees)

1° to 1.3°

3° to 5°

1.5°

.25°

.15°

4.5°

25°

Temperature Range
(std element)

-40° to 212° F

(-40° to 100° C)

-30° to 275° F

(-34° to 135° C)

-40° to 200° F

(-40° to 93° C)

-13° to 150° F

(-25° to 66° C)

-40° to 225° F

(-40° to 107° C)

-40° to 250° F

(-40° to 121°C)

-40° to 536° F

(-40° to 280° C)

-40° to 300° F

(-40° to 149° C)

-40° to 250° F

(-40° to 121° C)

-40° to 194° F

(-40° to 90° C)

-60° to 200° F

(-50° to 93° C)

-40° to 225° F

(-40° to 107° C)

Reactionary Loads due to Misalignment
(Low-Medium-High)

Medium

Low

Low

Medium

Medium

Medium

Low

Low

Low

Medium

Low

High

Torque to OD Capability

Good

Fair

Poor

Fair

Excellent

Good

Excellent

Good

Fair

Good

Fair

Excellent

Speed Capability

Good

Fair

Good

Fair

Excellent

Good

Excellent

Fair

Good

Fair

Good

Fair

Torsional Stiffness
(Low-Medium-High)

Low

Low

Medium

High

High

Medium

High

High

Medium

Low

Low

High

Ease of Installation/Maintenance

Excellent

Excellent

Excellent

Excellent

Fair

Fair

Fair

Fair

Excellent

Fair

Good

Fair

Chemical Resistance

Good

Good

Excellent

Good

Fair

Fair

Excellent

Excellent

Excellent

Fair

Fair

Fair

Adaptable to Several Designs

Excellent

Excellent

Poor

Poor

Excellent

Good

Excellent

Good

Fair

Good

Good

Good

Damping Capacity

Good

Excellent

Poor

Poor

Poor

Good

Poor

Poor

Poor

Excellent

Excellent

Poor