Fan Propellers | McMaster-Carr

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Blade Diameter

Shaft Diameter

Number of Blades

Blade Material

For Shaft Shape

Power @ Maximum Motor Speed

Blade Direction

Hub Material

Blade Pitch

Airflow @ Maximum Motor Speed

Export Control Classification Number (ECCN)

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156 Products

Fan Blades

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 A-C blades are for use in low-airflow applications.

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

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

For technical drawings and 3-D models, click on a part number.

	Blade
Style	Dia.	Number of	Pitch	Rotation	For Maximum Motor Speed, rpm	Airflow @ Max. Motor Speed, cfm	Power @ Max. Motor Speed, hp	Hub Material	Includes		Each
Aluminum
For Round Shaft with 3/16" Diameter
A	2 1/2"	10	45°	Clockwise	4,200	25	0.01	Aluminum	Set Screw	00000000	000000
A	3"	10	45°	Clockwise	4,200	40	0.01	Aluminum	Set Screw	00000000	0000
A	3 1/2"	10	45°	Clockwise	4,200	60	0.01	Aluminum	Set Screw	00000000	0000
A	4"	10	45°	Clockwise	4,200	85	0.01	Aluminum	Set Screw	00000000	0000
A	4 1/2"	10	45°	Clockwise	4,200	120	0.01	Aluminum	Set Screw	00000000	00000
A	5"	10	45°	Clockwise	4,200	190	0.03	Aluminum	Set Screw	00000000	00000
A	6"	4	20°	Clockwise	4,200	320	0.02	Aluminum	Set Screw	00000000	00000
A	6 1/2"	4	20°	Clockwise	4,200	350	0.03	Aluminum	Set Screw	00000000	00000
For Round Shaft with 1/4" Diameter
A	7"	5	30°	Clockwise	3,600	550	0.1	Aluminum	Set Screw	00000000	00000
A	8"	5	30°	Clockwise	3,600	850	0.17	Aluminum	Set Screw	00000000	00000
A	9"	5	25°	Clockwise	3,600	870	0.12	Aluminum	Set Screw	00000000	00000
A	10"	5	21°	Clockwise	1,725	820	0.06	Aluminum	Set Screw	00000000	00000
For Round Shaft with 5/16" Diameter
A	12"	5	24°	Clockwise	1,725	1,300	0.18	Aluminum	Set Screw	00000000	00000
B	10"	3	27°	Clockwise	1,800	740	0.03	Steel	Shaft Collar	00000000	00000
B	10"	4	23°	Clockwise	1,800	650	0.03	Steel	Shaft Collar	00000000	00000
B	12"	4	23°	Clockwise	1,800	1,400	0.08	Steel	Shaft Collar	00000000	00000
B	14"	4	23°	Clockwise	1,800	1,860	0.14	Steel	Shaft Collar	00000000	00000
B	14"	5	27°	Clockwise	1,800	2,100	0.22	Steel	Shaft Collar	00000000	00000
B	16"	4	23°	Clockwise	1,800	2,690	0.27	Steel	Shaft Collar	00000000	00000
B	18"	3	33°	Clockwise	1,800	5,080	0.8	Steel	Shaft Collar	00000000	00000
C	12"	3	23°	Clockwise	1,800	840	0.03	Steel	Shaft Collar	00000000	00000
C	14"	3	23°	Clockwise	1,800	1,650	0.12	Steel	Shaft Collar	00000000	00000
C	16"	3	23°	Clockwise	1,800	2,000	0.16	Steel	Shaft Collar	00000000	00000
C	18"	3	23°	Clockwise	1,800	2,600	0.31	Steel	Shaft Collar	00000000	00000
C	18"	4	23°	Clockwise	1,800	2,700	0.18	Steel	Shaft Collar	00000000	000000
For Round Shaft with 1/2" Diameter
A	14"	5	32°	Clockwise	1,725	1,900	0.27	Aluminum	Set Screw	00000000	00000
B	10"	3	27°	Clockwise	1,800	740	0.03	Steel	Shaft Collar	00000000	00000
B	10"	4	23°	Clockwise	1,800	650	0.03	Steel	Shaft Collar	00000000	00000
B	12"	4	23°	Clockwise	1,800	1,400	0.08	Steel	Shaft Collar	00000000	00000
B	14"	4	23°	Clockwise	1,800	1,860	0.14	Steel	Shaft Collar	00000000	00000
B	14"	5	27°	Clockwise	1,800	2,100	0.22	Steel	Shaft Collar	00000000	00000
B	16"	4	23°	Clockwise	1,800	2,690	0.27	Steel	Shaft Collar	00000000	00000
B	16"	5	27°	Clockwise	1,800	3,330	0.51	Steel	Shaft Collar	00000000	00000
B	18"	3	27°	Clockwise	1,800	4,400	0.51	Steel	Shaft Collar	00000000	00000
B	18"	3	33°	Clockwise	1,800	5,080	0.8	Steel	Shaft Collar	00000000	00000
B	18"	5	27°	Clockwise	1,800	4,660	0.86	Steel	Shaft Collar	00000000	000000
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
B	22"	5	27°	Clockwise	1,800	8,580	1.85	Steel	Shaft Collar	00000000	000000
B	24"	5	27°	Clockwise	1,800	11,000	2.79	Steel	Shaft Collar	00000000	000000
B	26"	5	27°	Clockwise	1,200	8,550	0.85	Steel	Shaft Collar	00000000	000000
C	12"	3	23°	Clockwise	1,800	840	0.03	Steel	Shaft Collar	00000000	00000
C	14"	3	23°	Clockwise	1,800	1,650	0.12	Steel	Shaft Collar	00000000	00000
C	16"	3	23°	Clockwise	1,800	2,000	0.16	Steel	Shaft Collar	00000000	00000
C	18"	3	23°	Clockwise	1,800	2,600	0.31	Steel	Shaft Collar	00000000	00000
C	18"	4	23°	Clockwise	1,800	2,700	0.18	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
C	24"	3	18°	Clockwise	900	2,700	0.05	Steel	Shaft Collar	00000000	000000
C	24"	4	18°	Clockwise	900	2,680	0.1	Steel	Shaft Collar	00000000	000000
C	30"	3	23°	Clockwise	1,140	7,700	0.57	Aluminum	Shaft Collar	00000000	000000
For Round Shaft with 5/8" Diameter
D	18"	3	__	Clockwise	1,125	2,600	0.2	Aluminum	Set Screw	0000000	000000
D	20"	3	__	Clockwise	1,100	3,100	0.2	Aluminum	Set Screw	0000000	000000
D	24"	3	__	Clockwise	1,050	5,300	0.25	Aluminum	Set Screw	0000000	000000
D	30"	3	__	Clockwise	1,025	8,000	0.25	Aluminum	Set Screw	0000000	000000
D	36"	3	__	Clockwise	850	9,800	0.5	Aluminum	Set Screw	0000000	000000
For Keyed Shaft with 5/8" Diameter
B	10"	4	23°	Clockwise	1,800	650	0.03	Steel	Shaft Collar	00000000	00000
B	12"	4	23°	Clockwise	1,800	1,400	0.08	Steel	Shaft Collar	00000000	00000
B	14"	4	23°	Clockwise	1,800	1,860	0.14	Steel	Shaft Collar	00000000	00000
B	14"	5	27°	Clockwise	1,800	2,100	0.22	Steel	Shaft Collar	00000000	00000
B	16"	4	23°	Clockwise	1,800	2,690	0.27	Steel	Shaft Collar	00000000	00000
B	16"	5	27°	Clockwise	1,800	3,330	0.51	Steel	Shaft Collar	00000000	00000
B	18"	3	27°	Clockwise	1,800	4,400	0.51	Steel	Shaft Collar	00000000	00000
B	18"	3	33°	Clockwise	1,800	5,080	0.8	Steel	Shaft Collar	00000000	00000
B	18"	5	27°	Clockwise	1,800	4,660	0.86	Steel	Shaft Collar	00000000	000000
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
B	22"	5	27°	Clockwise	1,800	8,580	1.85	Steel	Shaft Collar	00000000	000000
B	24"	5	27°	Clockwise	1,800	11,000	2.79	Steel	Shaft Collar	00000000	000000
B	26"	5	27°	Clockwise	1,200	8,550	0.85	Steel	Shaft Collar	00000000	000000
C	10"	3	27°	Clockwise	1,800	740	0.03	Steel	Shaft Collar	00000000	00000
C	12"	3	23°	Clockwise	1,800	840	0.03	Steel	Shaft Collar	00000000	00000
C	14"	3	23°	Clockwise	1,800	1,650	0.12	Steel	Shaft Collar	00000000	00000
C	16"	3	23°	Clockwise	1,800	2,000	0.16	Steel	Shaft Collar	00000000	00000
C	18"	3	23°	Clockwise	1,800	2,600	0.31	Steel	Shaft Collar	00000000	00000
C	18"	4	23°	Clockwise	1,800	2,700	0.18	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
C	24"	3	18°	Clockwise	900	2,700	0.05	Steel	Shaft Collar	00000000	000000
Galvanized Steel
For Keyed Shaft with 1/2" Diameter
E	18"	4	36°	Clockwise	2,125	4,400	0.8	Steel	Shaft Collar	000000000	000000
E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000
E	24"	4	36°	Clockwise	1,325	7,900	1	Steel	Shaft Collar	000000000	000000
E	26"	4	38°	Clockwise	1,125	9,000	1.1	Steel	Shaft Collar	000000000	000000
E	28"	4	38°	Clockwise	950	10,200	1	Steel	Shaft Collar	000000000	000000
E	30"	4	35°	Clockwise	950	10,500	1.3	Steel	Shaft Collar	000000000	000000
E	36"	4	38°	Clockwise	750	15,100	1.5	Steel	Shaft Collar	000000000	000000
E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	000000000	000000
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000
For Keyed Shaft with 5/8" Diameter
E	18"	4	36°	Clockwise	2,125	4,400	0.8	Steel	Shaft Collar	000000000	000000
E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000
E	24"	4	36°	Clockwise	1,325	7,900	1	Steel	Shaft Collar	000000000	000000
E	26"	4	38°	Clockwise	1,125	9,000	1.1	Steel	Shaft Collar	000000000	000000
E	28"	4	38°	Clockwise	950	10,200	1	Steel	Shaft Collar	000000000	000000
E	30"	4	35°	Clockwise	950	10,500	1.3	Steel	Shaft Collar	000000000	000000
E	36"	4	38°	Clockwise	750	15,100	1.5	Steel	Shaft Collar	000000000	000000
E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	000000000	000000
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000
For Keyed Shaft with 7/8" Diameter
E	18"	4	36°	Clockwise	2,125	4,400	0.8	Steel	Shaft Collar	000000000	000000
E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000
E	24"	4	36°	Clockwise	1,325	7,900	1	Steel	Shaft Collar	000000000	000000
E	26"	4	38°	Clockwise	1,125	9,000	1.1	Steel	Shaft Collar	000000000	000000
E	28"	4	38°	Clockwise	950	10,200	1	Steel	Shaft Collar	000000000	000000
E	30"	4	35°	Clockwise	950	10,500	1.3	Steel	Shaft Collar	000000000	000000
E	36"	4	38°	Clockwise	750	15,100	1.5	Steel	Shaft Collar	000000000	000000
E	36"	6	38°	Clockwise	860	20,600	4.4	Steel	Shaft Collar	000000000	000000
E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	000000000	000000
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000
E	48"	6	34°	Clockwise	500	28,200	3.6	Steel	Shaft Collar	000000000	000000
For Keyed Shaft with 1" Diameter
E	18"	4	36°	Clockwise	2,125	4,400	0.8	Steel	Shaft Collar	000000000	000000
E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000
E	24"	4	36°	Clockwise	1,325	7,900	1	Steel	Shaft Collar	000000000	000000
E	26"	4	38°	Clockwise	1,125	9,000	1.1	Steel	Shaft Collar	000000000	000000
E	28"	4	38°	Clockwise	950	10,200	1	Steel	Shaft Collar	000000000	000000
E	30"	4	35°	Clockwise	950	10,500	1.3	Steel	Shaft Collar	000000000	000000
E	30"	6	38°	Clockwise	1,125	16,100	3.5	Steel	Shaft Collar	000000000	000000
E	36"	4	38°	Clockwise	750	15,100	1.5	Steel	Shaft Collar	000000000	000000
E	36"	6	38°	Clockwise	860	20,600	4.4	Steel	Shaft Collar	000000000	000000
E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	000000000	000000
E	42"	6	32°	Clockwise	650	23,100	3.7	Steel	Shaft Collar	000000000	000000
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000
E	48"	6	34°	Clockwise	500	28,200	3.6	Steel	Shaft Collar	000000000	000000
For Keyed Shaft with 1 3/16" Diameter
E	18"	4	36°	Clockwise	2,125	4,400	0.8	Steel	Shaft Collar	000000000	000000
E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000
E	24"	4	36°	Clockwise	1,325	7,900	1	Steel	Shaft Collar	000000000	000000
E	26"	4	38°	Clockwise	1,125	9,000	1.1	Steel	Shaft Collar	000000000	000000
E	28"	4	38°	Clockwise	950	10,200	1	Steel	Shaft Collar	000000000	000000
E	30"	6	38°	Clockwise	1,125	16,100	3.5	Steel	Shaft Collar	000000000	000000
E	36"	4	38°	Clockwise	750	15,100	1.5	Steel	Shaft Collar	000000000	000000
E	36"	6	38°	Clockwise	860	20,600	4.4	Steel	Shaft Collar	000000000	000000
E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	000000000	000000
E	42"	6	32°	Clockwise	650	23,100	3.7	Steel	Shaft Collar	000000000	000000
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000
E	48"	6	34°	Clockwise	500	28,200	3.6	Steel	Shaft Collar	000000000	000000
For Keyed Shaft with 1 3/8" Diameter
E	18"	4	36°	Clockwise	2,125	4,400	0.8	Steel	Shaft Collar	000000000	000000
E	20"	4	36°	Clockwise	1,925	5,600	1	Steel	Shaft Collar	000000000	000000
E	24"	4	36°	Clockwise	1,325	7,900	1	Steel	Shaft Collar	000000000	000000
E	26"	4	38°	Clockwise	1,125	9,000	1.1	Steel	Shaft Collar	000000000	000000
E	28"	4	38°	Clockwise	950	10,200	1	Steel	Shaft Collar	000000000	000000
E	30"	4	35°	Clockwise	950	10,500	1.3	Steel	Shaft Collar	000000000	000000
E	30"	6	38°	Clockwise	1,125	16,100	3.5	Steel	Shaft Collar	000000000	000000
E	36"	4	38°	Clockwise	750	15,100	1.5	Steel	Shaft Collar	000000000	000000
E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	000000000	000000
E	48"	4	39°	Clockwise	525	24,900	2.5	Steel	Shaft Collar	000000000	000000

High-Output Fan Blades

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 A blades include a shaft collar to fasten a blade to your fan's shaft.

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).

For technical drawings and 3-D models, click on a part number.

	For Shaft		Blade
Style	Dia.	Shape	Dia.	Number of	Pitch	Rotation	For Maximum Motor Speed, rpm	Airflow @ Max. Motor Speed, cfm	Power @ Max. Motor Speed, hp	Hub Material	Includes		Each
Aluminum
A	1/2"	Round	24"	3	33°	Clockwise	1,800	12,400	3.26	Steel	Shaft Collar	00000000	0000000
A	5/8"	Keyed	24"	3	33°	Clockwise	1,800	12,400	3.26	Steel	Shaft Collar	00000000	000000
Plastic
B	5/8"	Keyed	12"	6	35°	Counterclockwise	5,675	4,800	4	Aluminum	Set Screw	0000000	00000
B	5/8"	Keyed	14"	6	35°	Counterclockwise	5,000	6,300	4.6	Aluminum	Set Screw	0000000	00000
B	5/8"	Keyed	15"	6	35°	Counterclockwise	4,725	7,400	5	Aluminum	Set Screw	0000000	00000
B	5/8"	Keyed	16"	6	35°	Counterclockwise	4,500	8,400	5.28	Aluminum	Set Screw	0000000	00000
B	5/8"	Keyed	18"	6	35°	Counterclockwise	4,100	10,300	5.83	Aluminum	Set Screw	0000000	00000
B	5/8"	Keyed	20"	6	35°	Counterclockwise	3,800	11,900	6.1	Aluminum	Set Screw	0000000	00000
B	7/8"	Keyed	24"	6	35°	Counterclockwise	3,175	17,100	9.27	Aluminum	Set Screw	0000000	000000
B	__	__	30"	6	30°	Counterclockwise	2,575	24,900	11.6	Aluminum	__	0000000	000000
B	__	__	36"	6	30°	Counterclockwise	2,175	30,400	10.6	Aluminum	__	0000000	000000