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High Performance Gear Couplings

The Series AC coupling design is intended for high performance applications where either high speed or high torque operating conditions prevail. The actual capacity of the coupling is a function of the combination of load, speed and alignment accuracy. The material used is low alloy steel, heat-treated to attain optimum properties of strength, hardness and toughness. Therefore, the properties of the material in the heat-treated state allow for much higher torque loads than for other coupling classifications; which use carbon steel.

Features & Benefits:

Meets API 671.
Inventoried for quick delivery.
Manufactured to very tight tolerances.
Nitrided gearing for extended life.
Available in both continuous lubrication or packed lube design.
AC series for high speed and high torque.
Various style available: Reduced moment style (ACCS/RM & RMD, ACPL), Marine style (ACCM).
Optional designs: Lubrication through the spool or spacer (ACCR); lubrication through the ends (ACCL II); lubrication is introduced through one end only (ACCL I).
High performance lubricant.

Related Documents

Additional Data

ACCS/RM Gear Coupling Continuous Lubrication Sizes #1 1/4 - #7

ACCS RM Gear Coupling 114 ACCS/RM nomenclature denotes: AC-Series AC Coupling, C - Continuous oil lubrication,
S - oil introduced thru spacer, and RM - reduced moment

Lightweight
Low overhung moment

Kop-Flex Coupling Figure 1

SIZE

DIMENSIONS (INCHES)

SIZE

C_A

C_F

C_FR

N_I

N_O

LONG HUB

BORE

A-A

1 1/4

4 3/32

3/16

1/32

1/8

3 1/16

4 5/8

1 1/2

1 3/4

2 1/4

2 3/8

1 1/2

1 7/8

8 3/4

2 1/16

1.28

.97

1 1/4

1 1/2

73/2

1/16

1/8

3 31/32

4 9/16

1 7/8

2 1/4

3 1/16

2 7/16

9 7/8

2 21/32

1.69

1.25

1 1/2

6 1/16

1/4

1/16

5/32

4 13/16

4 1/2

2 5/8

3 3/4

3 15/16

2 1/2

3 1/32

11 1/16

3 9/32

2.13

1.58

2 1/2

9/32

3/32

3/16

5 11/16

4 7/16

3 11/32

3 3/4

4 1/2

4 3/4

3 19/32

12 3/16

3 7/8

2.50

1.88

2 1/2

8 3/16

9/32

3/32

3/16

6 31/32

4 7/16

4 1/16

4 1/2

5 1/4

5 9/16

3 1/2

4 3/16

13 3/8

4 15/32

2.98

2.19

3 1/2

9 5/16

5/16

1/8

3/16

7 31/64

6 3/8

4 3/4

5 1/4

6 3/8

4 3/4

16 1/2

5 1/16

3.31

2.38

3 1/2

10 1/2

3/8

1/8

1/4

8 1/2

6 1/4

5 1/2

6 3/4

7 3/16

4 1/2

5 5/16

17 5/8

5 11/16

3.78

2.72

4 1/2

11 9/16

3/8

5/32

1/4

9 17/32

6 1/4

6 3/16

6 3/4

7 1/2

6 1/32

19 1/16

6 13/32

4.30

3.14

4 1/2

13 13/16

7/16

5/32

5/16

11 1/4

9 1/8

7 9/16

7 1/2

9 5/8

7 13/32

24 13/16

7 27/32

5.34

3.88

16 3/16

1/2

3/16

3/8

13 3/16

10 1/2

11 1/8

8 11/16

27 3/8

9 3/16

6.47

4.55

18 1/4

1/2

3/16

3/8

15 1/4

10 13/32

10 1/2

12 7/8

9 23/32

31 7/16

10 7/32

7.41

5.13

ACCS RM Gear Coupling 112

ACCS/RMD Gear Coupling Continuous Lubrication Sizes #1 1/2 - # 7

ACCS/RMD nomenclature notes:
AC - Series AC Coupling, C - continuous oil lubrication,
S - oil introduced thru the spacer,
and RM - reduced moment, D - Damless

Lightweight
Damless

Kop-Flex Coupling Figure 2

Coupling Size	A (in.)	BA (in.)	"Std" C Shaft Sep. (in.)	C_FR (in.)	E Fit LEngth (in.)	G (in.)	K (in.)	"Std" L Spacer Length (in.)	W Oil Inlet (in.)	N_O (in.)	N_I (in.)
1.5	5.00	2.59	5	0.12	2.44	3.97	0.06	4.56	3.19	2.25	1.88
2.0	6.06	3.22	5	0.16	3.03	4.81	0.06	4.50	3.94	3.00	2.62
2.5	7.00	3.81	5	0.19	3.59	5.69	0.06	4.44	4.75	3.75	3.34
3.0	8.19	4.25	5	0.19	4.19	6.66	0.16	4.56	5.56	4.50	4.06
3.5	9.31	4.88	7	0.19	4.75	7.48	0.19	6.38	6.38	5.25	4.75

4.0	10.50	5.56	7	0.25	5.31	8.50	0.12	6.25	7.19	6.00	5.50
4.5	11.56	6.28	7	0.25	6.03	9.53	0.12	6.25	8.00	6.75	6.19
5.0	13.81	7.63	10	0.31	7.41	11.25	0.22	9.12	9.62	8.25	7.56
6.0	16.19	9.13	10	0.38	8.69	13.19	0.06	9.00	11.12	9.75	9.00
7.0	18.25	10.19	12	0.38	9.81	15.25	0.12	11.00	12.88	11.25	10.41

ACPL Gear Coupling Continuous Lubrication Sizes #1 1/4 - # 7

ACPL Gear Coupling 114

The ACPL nomenclature denotes:
AC Series AC Coupling, PL - packed lubrication.

Packed lube w/KHP Grease
Low to moderate speed range
No oil nozzles

Kop-Flex Coupling Figure 3

SIZE

DIMENSIONS (INCHES)

SIZE

B_A

C_A

C_F

C_FR

N_I

N_O

A-A

MAXIMUM BORE

BORE

1 1/4

4 3/32

1 19/32

3/16

1/32

1/8

3 1/16

4 5/8

2 15/32

2 23/32

2 1/4

.69

1 1/2

1 7/8

8 3/4

15/32

.90

1 1/4

1 1/2

7/32

1/16

1/8

3 31/32

4 9/16

3 5/16

3 9/16

.85

2 7/156

9 7/8

21/32

1.17

1 1/2

6 1/16

2 19/32

1/4

1/16

5/32

4 13/16

4 1/2

4 1/16

4 25/64

3 3/4

1.25

2 1/2

3 1/32

11 1/16

11/16

1.50

2 1/2

3 7/32

9/32

3/32

3/16

5 11/16

4 7/16

4 57/64

5 19/64

4 1/2

1.65

3 19/32

12 3/16

21/32

1.79

2 1/2

8 3/16

3 3/4

9/32

3/32

3/16

6 21/32

4 7/16

5 45/64

5/32

5 1/4

1.98

3 1/2

4 3/16

13 3/8

23/32

3 1/2

9 5/16

4 3/8

5/16

1/8

3/16

7 31/64

6 3/8

6 1/2

7 1/32

2.38

4 3/4

16 1/2

11/16

2.30

3 1/2

10 1/2

4 15/16

3/8

1/8

1/4

8 1/2

6 1/4

7 3/8

7 31/32

6 3/4

2.63

4 1/2

5 5/16

17 5/5

3/4

2.62

4 1/2

11 9/16

5 1/2

3/8

5/32

1/4

9 17/32

6 1/4

8 7/32

8 27/32

7 1/2

3.02

6 1/32

19 1/16

29/32

3.01

4 1/2

13 13/16

6 9/32

7/16

5/32

5/16

11 1/4

9 1/8

9 7/8

10 5/8

3.47

7 13/32

24 13/16

1 9/16

3.70

16 3/16

7 19/32

1/2

3/16

3/8

13 3/16

11 3/8

12 5/16

10 1/2

4.56

8 11/16

27 3/8

1 19/32

4.38

18 1/4

8 25/32

1/2

3/16

3/8

15 1/4

13 1/4

14 1/4

5.63

9 23/32

31 5/8

1 7/16

4.94

ACCM Gear Coupling 114

The ACCM Gear Coupling Continuous Lubrication Sizes #1 1/4 - #7

The ACCM nomenclature denotes: AC Series AC Coupling, C - continuous oil lubrication, M - Marine Style.

Marine Style
Replace flex section without removing hubs

Kop-Flex Coupling Figure 4

SIZE

B_C

B_F

C_FR

N_I

N_O

SHORT RIGID HUB

LONG RIGID HUB

BORE

G_R

A-A

BORE

G_R

A-A

1 1/2

4.410

1 11/32

3/32

3 3/32

1 11/16

2 1/8

5/32

2 7/8

1 1/2

1 7/8

8 3/4

2 1/4

2.41

1.58

2 1/2

2 7/16

9 7/8

3 3/4

2.97

1.58

6 1/16

5.350

1 17/32

3/32

4 15/16

2 5/16

2 13/16

7/32

3 9/16

2 7/16

9 7/8

3.06

1.94

3 1/8

3 1/32

11 1/16

4 1/2

3.66

1.93

2 1/2

6.270

1 3/4

1/8

5 11/16

3 1/4

3 11/16

7/32

4 7/16

2 1/2

3 1/32

11 1/16

3 3/4

3.78

2.26

3 7/8

3 19/32

12 3/16

5 7/16

4.34

2.19

8 3/16

7.330

1 29/32

1/8

6 21/32

3 13/16

4 5/16

7/32

5 1/8

3 19/32

12 3/16

4 1/2

4.41

2.61

4 1/2

4 3/16

13 3/8

6 3/8

5.00

2.53

3 1/2

9 3/16

3.280

2 1/4

5/32

7 31/64

4 3/8

4 15/16

1/4

5 13/16

3 1/2

4 3/16

15 3/8

5 1/4

5.16

2.98

4 7/8

4 3/4

10 1/2

7 1/8

5.72

2.29

10 1/2

9.400

2 13/32

5/32

8 1/2

4 13/16

5 1/2

9/32

6 9/16

4 3/4

16 1/2

5.84

3.33

5 5/8

5 51/6

17 5/8

8 1/16

6.40

3.22

4 1/2

11 9/16

10.450

2 7/8

3/16

9 17/32

5 3/8?

6 1/8

9/32

7 1/4

4 1/2

5 5/16

17 5/8

6 3/4

6.56

3.71

6 1/2

6 1/32

19 1/16

9 3/16

7.78

3.60

13 13/16

12.400

3 9/32

3/16

11 1/4

6 13/16

7 5/8

11/32

8 13/16

6 1/32

22 1/16

7 1/2

7.50

4.33

7 1/2

7 9/32

24 9/16

10 7/8

8.75

4.32

16 3/16

14.250

3 7/8

1/4

13 5/16

7 3/4

8 3/4

13/32

7 9/32

24 9/16

8.97

5.21

8 7/8

8 15/32

26 15/16

12 3/4

10.15

5.07

18 1/4

16.580

4 1/8

1/4

15 1/4

9 1/2

10 1/2

13/32

11 7/8

8 15/32

28 15/16

10 1/2

10.28

5.80

10 1/4

9 25/32

31 7/16

14 5/8

11.53

5.67

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High Performance Gear Couplings

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