This driveshaft is assembled with 316 stainless steel hardware and hubs.

The Max HP at a 2.0 Service Factor is 225 at 1,800 RPM and 188 at 1,500 RPM

The max DBSE (in.) is 181 at 1,800 RPM and 201 at 1,500 RPM.
The Amarillo Gear Composite Drive Shaft for cooling towers reflects a long history of quality workmanship and reliability. Amarillo Gear has been designing and manufacturing power transmission products since 1934. The Amarillo Gear Composite Drive Shaft is the perfect complement to the Amarillo Right Angle Gear Drive. Each drive shaft connects the electric motor to the gearbox input shaft, thereby transmitting torque to rotate the cooling tower fan. Each drive shaft is specifically manufactured and engineered for the specific application to achieve optimum performance. The Amarillo Gear Composite Drive Shaft will accommodate spans ranging from 2 feet in small HVAC towers, to over 20 feet in large field erected towers. Amarillo Gear is proud to be a certified ISO 9001:2008 company. Design features and ratings of the Amarillo Gear Composite Drive Shafts are in accordance with, or exceed, the minimum requirements of AGMA (American Gear Manufacturers Association) standards.

Amarillo Gear

Dimensional Data

Table I – Dimensional Data (All dimensions shown in inches (mm))
Model #	# Bolts Per Flex Disc	Flex Disc Color	Flex Disc OD	Max Bore Standard Hub	Max Bore Large Hub	Minimum Bore	Dim “A”	Dim “B”	Dim “C”
CF52 275	6	red	5.25 (133)	2.375	2.375	0.93 (24)	2.75 (70)	5.75 (145)	2.44 (62)
CF60 275	6	Green	6.00 (152)	2.375 (60)	3.375 (90)	0.938 (24)	2.75 (70)	6.38 (162)	2.44 (62)
CF60 425	6	Green	6.00 (152)	2.375 (60)	3.375 (90)	0.938 (24)	4.25 (108)	6.38 (162)	2.44 (62)
CF67 275	6	Orange	6.75 (171)	3.000 (76)	3.375 (90)	1.56 (40)	2.75 (70)	7.13 (181)	2.75 (70)
CF67 425						1.56 (40)	4.25 (108)	7.13 (181)	2.75 (70)
CF67 600						1.56 (40)	6.00 (152)	7.13 (181)	2.75 (70)
CF73 425	8	Blue	7.30 (185)	3.375 (90)	3.625 (95)	1.81 (46)	4.25 (108)	7.67 (195)	2.75 (70)
CF73 600						1.81 (46)	6.0 (152)	7.67 (195)	2.75 (70)
CF73 800						1.81 (46)	8.0 (203)	7.67 (195)	2.75 (70)
CF73 950						1.81 (46)	9.5 (241)	7.67 (195)	2.75 (70)
CF83 425	8	Yellow	8.38 (213)	3.875 (98)	Contact Factory	2.06 (53)	4.25 (108)	8.75 (222)	3.13 (79)
CF83 600						2.06 (53)	6.0 (152)	8.75 (222)	3.13 (79)
CF83 800						2.06 (53)	8.0 (203)	8.75 (222)	3.13 (79)
CF83 950						2.06 (53)	9.5 (241)	8.75 (222)	3.13 (79)
CF83 1150						2.06 (53)	11.50 (292)	8.75 (222)	3.13 (79)

Product description

Amarillo Drive Shaft Composite Coupling Information

Comparison with Steel Drive Shafts
Features	Benefits
High Strength to Weight Ratio	Composite center spacer member weight is a mere fraction of the weight of a steel drive shaft center member.
Inherent Corrosion Resistance	Composite materials have corrosion resistance exceeding that of 316 stainless steel.
Long Spans	Eliminates requirement for high maintenance and costly intermediate pillow block bearings.
Patented Composite Flex Disc	Low maintenance; no fretting corrosion of steel “shim” packs, plus much easier installation and maintenance.
Dimensionally Stable	Very low Coefficient of Thermal Expansion (CTE).
Vibration & Shock Control	The natural dampening of composite materials reduces the transmission of vibration throughout the power train, resulting in less wear and tear on mechanical equipment.

Comparison with Other Composite Drive Shafts
Features	Benefits
Greater Misalignment Capacity	When misalignment occurs due to mechanical equipment shifting, greater than one degree of angular misalignment per flex disc allowed.
Composite Flex Discs	Color coded by size for easy identification. Includes integral 316 SS bushings.
Registered Bushings & Flanges	Lower stress concentrations and better assurance of alignment.
High Strength Composite Flange Hubs	Spacer tube flange hubs are strong and corrosion resistant, while at the same time lightweight, reducing overhung loads.
316 SS Flange Hubs	Corrosion resistance of stainless steel for motor & gearbox hubs.
Standard 316 SS Hardware	Since precision hardware is not required, fasteners are easily replaced, and at lower costs. Optional monel hardware available.
High Service Factor Rating	Capable of withstanding repetitive high start-up torques.
Balancing	All drive shafts are dynamically balanced to AGMA 9000-C90, Class 9 specifications.
Process Verification	Each Amarillo composite drive shaft is tested to 4 times continuous operating torque prior to shipment.
Easier Installation	Fewer parts required at each flex disc connection.
Special Shipping Tubes	Designed to give ultimate drive shaft protection for both international and domestic shipments.

Additional information

brand	Amarillo

Amarillo Drive Shaft CF73 800X

Dimensional Data

Table I – Dimensional Data (All dimensions shown in inches (mm))

Model #

# Bolts Per Flex Disc

Flex Disc Color

Flex Disc OD

Max Bore Standard Hub

Max Bore Large Hub

Minimum Bore

Dim “A”

Dim “B”

Dim “C”

CF52 275

6

red

5.25 (133)

2.375

2.375

0.93 (24)

2.75 (70)

5.75 (145)

2.44 (62)

CF60 275

6

Green

6.00 (152)

2.375 (60)

3.375 (90)

0.938 (24)

2.75 (70)

6.38 (162)

2.44 (62)

CF60 425

0.938 (24)

4.25 (108)

6.38 (162)

2.44 (62)

CF67 275

6

Orange

6.75 (171)

3.000 (76)

3.375 (90)

1.56 (40)

2.75 (70)

7.13 (181)

2.75 (70)

CF67 425

1.56 (40)

4.25 (108)

7.13 (181)

2.75 (70)

CF67 600

1.56 (40)

6.00 (152)

7.13 (181)

2.75 (70)

CF73 425

8

Blue

7.30 (185)

3.375 (90)

3.625 (95)

1.81 (46)

4.25 (108)

7.67 (195)

2.75 (70)

CF73 600

1.81 (46)

6.0 (152)

7.67 (195)

2.75 (70)

CF73 800

1.81 (46)

8.0 (203)

7.67 (195)

2.75 (70)

CF73 950

1.81 (46)