20" Blade Diameter Fan Blades

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Shaft Diameter

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Airflow @ Maximum Motor Speed

Material

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Export Control Classification Number (ECCN)

EAR99

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Aluminum

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18 Products

Fan Blades


Style B	Style C

Style D	Style E

Keyway

Replace worn and damaged fan blades. Use the included set screw or shaft collar to fasten a blade to your fan's shaft. Fan blades with a keyway are for use on motors with a keyed shaft. For difficult-to-remove hubs and fan blades, use fan blade pullers (not included).

Styles B and C—Styles A-C blades are for use in low-airflow applications.

Style D—Style D blades are sturdier than Styles A-C blades and produce higher airflow.

Style E—Style E blades are cupped to create a focused stream of high airflow.

		Blade
	Style	Dia.	No. of	Pitch	Direction	For Max. Motor Speed, rpm	Airflow @ Max. Motor Speed, ft³/min	Power @ Max. Motor Speed, hp	Hub Material	Includes		Each
Aluminum Blade







				For Round Shaft with 1/2" Dia.

				B	20"	3	22°	Clockwise	1,800	4,200	0.5	Steel	Shaft Collar	00000000	000000


				B	20"	3	30°	Clockwise	1,800	5,840	0.83	Steel	Shaft Collar	00000000	00000
				B	20"	5	27°	Clockwise	1,800	6,040	1.29	Steel	Shaft Collar	00000000	000000
				C	20"	3	23°	Clockwise	1,800	3,600	0.47	Steel	Shaft Collar	00000000	00000
				C	20"	4	23°	Clockwise	1,800	3,500	0.32	Steel	Shaft Collar	00000000	000000




						For Round Shaft with 5/8" Dia.

						D	20"	3	—	Clockwise	1,100	3,100	0.2	Aluminum	Set Screw	0000000	000000




								For Keyed Shaft with 5/8" Dia.

								B	20"	3	22°	Clockwise	1,800	4,200	0.5	Steel	Shaft Collar	00000000	00000


								B	20"	3	30°	Clockwise	1,800	5,840	0.83	Steel	Shaft Collar	00000000	00000
								B	20"	5	27°	Clockwise	1,800	6,040	1.29	Steel	Shaft Collar	00000000	000000
								C	20"	3	23°	Clockwise	1,800	3,600	0.47	Steel	Shaft Collar	00000000	00000
								C	20"	4	23°	Clockwise	1,800	3,500	0.32	Steel	Shaft Collar	00000000	000000


								Galvanized Steel Blade







												For Keyed Shaft with 1/2" Dia.

												E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000




														For Keyed Shaft with 5/8" Dia.

														E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000




																For Keyed Shaft with 7/8" Dia.

																E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000




																For Keyed Shaft with 1" Dia.

		E														20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000




																For Keyed Shaft with 1 3/16" Dia.

																E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000




																		For Keyed Shaft with 1 3/8" Dia.

				E	20"													4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000

High-Output Fan Blades


Style B	Keyway

Generate at least 25% greater airflow than standard fan blades. Use these blades to replace worn and damaged fan blades. The fan blades with a keyway are for use on motors with a keyed shaft. For difficult-to-remove hubs and fan blades, use fan blade pullers (not included).

Style B—Style B 12"-24" dia. blades use the included set screw to fasten a blade to your fan's shaft. The 30" and 36" dia. blades require an SH style quick-disconnect bushing (not included).

		Blade
	Style	Dia.	No. of	Pitch	Direction	For Max. Motor Speed, rpm	Airflow @ Max. Motor Speed, ft³/min	Power @ Max. Motor Speed, hp	Hub Material	Includes		Each
Plastic Blade







				For Keyed Shaft with 5/8" Dia.

				B	20"	6	35°	Counterclockwise	3,800	11,900	6.1	Aluminum	Set Screw	0000000	000000