42" Blade Diameter Fans | McMaster-Carr

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Blade Diameter

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Less than 10,000 ft³/min

10,000 ft³/min to 19,999 ft³/min

20,000 ft³/min to 29,999 ft³/min

Electrical Phase

Power Source

Overall Height

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Blade Material

Fan Head Movement

Number of Speeds

Motor Speed

Housing Material

Overall Width

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43 Products

Belt-Drive Mobile Floor Fans


	Replacement Wheels

Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.

Open Dripproof (ODP) Motor Enclosure—Fans with an open dripproof (ODP) motor enclosure are for relatively clean, dry, indoor locations.

Totally Enclosed Motor Enclosure—Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and wet environments.

	Fans																Replacement Wheels
	Blade								Overall
	Dia.	Material	Airflow, ft³/min	Volume (Sound) @ Distance	Motor Speed, rpm	No. of Speeds	Power, hp	Current, amp	Ht.	Wd.	Dp.	Cord Lg., ft.	Guard Material	Certification		Each	Wheel Dia.		Each
Open Dripproof (ODP) Motor Enclosure—Aluminum Housing







				120V AC, Single Phase—Three Blade Plug

				42"	Steel	14,400	Not Rated	475	2	3/4	9.1	44"	46"	22"	10	Powder-Coated Steel	—	3721T34	000000000	—	———	0


				Open Dripproof (ODP) Motor Enclosure—Steel Housing







								120V AC, Single Phase—Three Blade Plug

								42"	Aluminum	14,445	66 dBA @ 15 ft.	500	2	1/2	7.3	46"	45"	21"	10	Powder-Coated Steel	—	2214K105	00000000	8"	20445K56	000000


								42"	Aluminum	15,800	66 dBA @ 15 ft.	500	1	3/4	13.0	47"	45"	24"	10	Steel	C-UL Listed, UL Listed	2214K63	00000000	8"	20445K56	00000


								Totally Enclosed Motor Enclosure—Steel Housing







												120V AC, Single Phase—Three Blade Plug

												42"	Aluminum	14,445	66 dBA @ 15 ft.	500	1	1/2	7.6	47"	45"	21"	10	Powder-Coated Steel	—	2214K108	00000000	8"	20445K56	00000

Economy Direct-Drive Mobile Floor Fans with Tilt Stand

Tilt fans to direct air where it's needed. These direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

Fans with Open Dripproof (ODP) Motor Enclosure


	Replacement Wheels

Fans with an open dripproof (ODP) motor enclosure are for relatively clean, dry, indoor locations.

	Fans																		Replacement Wheels
	Blade								Overall
	Dia.	Material	Airflow	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current	Ht.	Wd.	Dp.	Cord Lg., ft.	Drive Type	Housing Material	Guard Material	Certification		Each	Wheel Dia.		Each
120V AC, Single Phase—Three Blade Plug







				Non-Oscillating Fan, Tilting Fan

				42"	Steel	13,600 ft³/min	75 dBA @ 15 ft.	825	2	1/2	6.0 amp	54"	51"	27"	10	Direct	Steel	Steel	C-UL Listed, UL Listed	20375K711	000000000	10"	20445K57	000000

Replacements for Fans

Blade
42"	Aluminum	3	20445K25	0000000

For Motor Speed, rpm	For Blade Dia.		Each
825	36", 42"	20445K813	0000000

	Each
20445K715	000000

Fans with Totally Enclosed Motor Enclosure


	Replacement Wheels

Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and wet environments.

	Fans																		Replacement Wheels
	Blade								Overall
	Dia.	Material	Airflow	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current	Ht.	Wd.	Dp.	Cord Lg., ft.	Drive Type	Housing Material	Guard Material	Certification		Each	Wheel Dia.		Each
120V AC, Single Phase—Three Blade Plug







				Non-Oscillating Fan, Tilting Fan

				42"	Aluminum	13,600 ft³/min	75 dBA @ 15 ft.	825	1	1/2	6.0 amp	54"	51"	27"	10	Direct	Steel	Steel	C-UL Listed, UL Listed	20375K21	000000000	10"	20445K57	000000

Economy Direct-Drive Mobile Floor Fans

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

Fans with Open Dripproof (ODP) Motor Enclosure


	Replacement Wheels

Fans with an open dripproof (ODP) motor enclosure are for relatively clean, dry, indoor locations.

	Fans																		Replacement Wheels
	Blade								Overall
	Dia.	Material	Airflow	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current	Ht.	Wd.	Dp.	Cord Lg., ft.	Drive Type	Housing Material	Guard Material	Certification		Each	Wheel Dia.		Each
120V AC, Single Phase—Three Blade Plug







				Non-Oscillating Fan

				42"	Steel	13,600 ft³/min	75 dBA @ 15 ft.	825	2	1/2	6.0 amp	46"	45"	21"	10	Direct	Steel	Steel	C-UL Listed, UL Listed	20445K712	0000000	8"	20445K56	000000

Replacements for Fans

Blade
42"	Aluminum	3	20445K25	0000000

For Motor Speed, rpm	For Blade Dia.		Each
825	36", 42"	20445K813	0000000

	Each
20445K715	000000

Fans with Totally Enclosed Motor Enclosure


	Replacement Wheels

Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and wet environments.

	Fans																		Replacement Wheels
	Blade								Overall
	Dia.	Material	Airflow	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current	Ht.	Wd.	Dp.	Cord Lg., ft.	Drive Type	Housing Material	Guard Material	Certification		Each	Wheel Dia.		Each
120V AC, Single Phase—Three Blade Plug







				Non-Oscillating Fan

				42"	Aluminum	13,600 ft³/min	75 dBA @ 15 ft.	825	1	1/2	6.0 amp	46"	45"	21"	10	Direct	Steel	Steel	C-UL Listed, UL Listed	20445K15	0000000	8"	20445K56	000000

Replacements for Fans

Blade
42"	Aluminum	3	20445K25	0000000

For Motor Speed, rpm	For Blade Dia.		Each
825	36", 42"	20445K91	0000000

Dust-Resistant Direct-Drive Wall-Mount Exhaust Fans

Style 5

Better suited for dirty, dusty, and damp environments than standard direct-drive fans, these have a totally enclosed motor enclosure. Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. Use these fans to draw stagnant and humid air out of a room or area.

230/460V AC, Three Phase (Hardwire)—Totally Enclosed Motor Enclosure

Style 5

Exhaust Fan Collars—Collars and louvers are sold separately. Use a collar to connect a wall-mount exhaust fan to a louver.

Exhaust Fans																	Exhaust Fan Collars
								Overall
Style	Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Wt., lb.	Ambient Temp., ° F	Frame Material	Blade Material		Each		Each
5	42"	26,600	80 dB @ 5 ft.	Direct	1,150	1	5	48"	48"	20"	295	104	Steel	Steel	2222K17	000000000	5353K17	0000000

Corrosion-Resistant Direct-Drive Ceiling-Mount Fans

With a polyethylene housing, these fans are durable and resist rust. They’re direct-drive fans, so they have fewer moving parts than belt-drive fans for less maintenance.

Fans with Totally Enclosed Motor Enclosure

Shown Mounted with Chains (Not

Included)

	Blade								Overall
	Dia.	Material	Airflow	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current	Ht.	Wd.	Dp.	Cord Lg., ft.	Drive Type	Housing Material	Guard Material	Certification		Each
120V AC, Single Phase—Three Blade Plug







				Non-Oscillating Fan

				42"	Aluminum	9,000 ft³/min	77 dB @ 15 ft.	825	1	1/2	7.9 amp	43 5/8"	43"	13 3/4"	12	Direct	Polyethylene	Powder-Coated Steel	C-ETL Listed, ETL Listed	4718N13	0000000

Belt-Drive Wall-Mount Exhaust Fans with Louvers

These fans come complete with a movable-blade louver. The louvers are gravity operated so they open only when air flows through them, which prevents backdrafts. Belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged. Use these fans to draw stagnant and humid air out of a room or area.

120V AC, Single Phase (Hardwire)—Open Dripproof (ODP) Motor Enclosure

Fans with an open dripproof (ODP) motor enclosure are for relatively clean, dry, indoor locations.

							For Opening		Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Ht.	Wd.	Dp.	Wt., lb.	Ambient Temp., ° F	Housing Material	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole Dia.		Each
42"	11,000	57 dB @ 5 ft.	Belt	400	1	3/4	49"	49"	48 1/2"	48 1/2"	19"	270	104	Steel	Steel	Steel	No	3/16"	2101K14	000000000

Replacements for Exhaust Fans

For Blade Dia.		Each
42"	2101K103	000000

Blade
42"	Steel	4	2101K108	0000000

230/460V AC, Three Phase (Hardwire)—Totally Enclosed Motor Enclosure

Fans with a totally enclosed motor enclosure can be used in dirty, dusty, and damp environments.

							For Opening		Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Ht.	Wd.	Dp.	Wt., lb.	Ambient Temp., ° F	Housing Material	Frame Material	Blade Material	Mounting Fasteners Included	Mounting Hole Dia.		Each
42"	11,000	57 dB @ 5 ft.	Belt	400	1	3/4	49"	49"	48 1/2"	48 1/2"	25"	250	104	Steel	Steel	Steel	No	3/16"	2101K24	000000000

Replacements for Exhaust Fans

For Blade Dia.		Each
42"	2101K104	000000

Blade
42"	Steel	4	2101K108	0000000

Hazardous Location Floor Fans

Often used in welding shops and oil refineries, the motor in these fans is rated as safe for use around flammable and combustible gas, vapor, and dust. As a belt-drive motor, it’s quieter than direct-drive motors and has a longer life span because its components are replaceable. The motor is totally enclosed for protection in dusty and wet environments. These fans are freestanding, so there’s no mounting required. They have wheels for rolling into place before they’re hardwired, but don’t allow for movement once they’re in use.

Non-Oscillating Fans with Wheels


	Replacement Wheels

	Fans																Replacement Wheels
	Blade								Overall
	Dia.	Material	Airflow, ft³/min	Volume (Sound) @ Distance	Motor Speed, rpm	No. of Speeds	Power, hp	Current	Ht.	Wd.	Dp.	Hazardous Location Rating	Housing Material	Guard Material		Each	Wheel Dia.		Each
115/230V AC, Single Phase—Hardwire



		42"	Aluminum	14,400	66 dBA @ 15 ft.	500	1	1/2	9.8 amp/4.9 amp	47"	45"	25"	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	Steel	Powder-Coated Steel	7424N112	000000000	8"	20445K56	000000


		42"	Aluminum	15,800	66 dBA @ 15 ft.	500	1	3/4	12.6 amp/6.3 amp	47"	45"	25"	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	Steel	Powder-Coated Steel	7424N113	00000000	8"	20445K56	00000

Belt-Drive Mobile Floor Fans with Tilt Stand

Tilt fans to direct air where it's needed. These belt-drive fans are quieter and have a longer life span than direct-drive fans because components can be replaced if worn or damaged.

Fans with Open Dripproof (ODP) Motor Enclosure


	Replacement Wheels

Fans with an open dripproof (ODP) motor enclosure are for relatively clean, dry, indoor locations.

	Fans																		Replacement Wheels
	Blade								Overall
	Dia.	Material	Airflow	Volume	Motor Speed, rpm	No. of Speeds	Power, hp	Current	Ht.	Wd.	Dp.	Cord Lg., ft.	Drive Type	Housing Material	Guard Material	Certification		Each	Wheel Dia.		Each
120V AC, Single Phase—Three Blade Plug







				Non-Oscillating Fan, Tilting Fan

				42"	Aluminum	14,445 ft³/min	66 dBA @ 15 ft.	500	2	1/2	7.3 amp	54"	50"	27"	10	Belt	Steel	Powder-Coated Steel	—	2214K103	000000000	10"	20445K57	000000


				42"	Aluminum	16,900 ft³/min	66 dBA @ 15 ft.	500	1	3/4	13.0 amp	54"	52"	27"	10	Belt	Steel	Steel	C-UL Listed, UL Listed	2214K73	00000000	10"	20445K57	00000

Fan Blades


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).

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
Galvanized Steel Blade







				For Keyed Shaft with 1/2" Dia.

				E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	19055K861	0000000




						For Keyed Shaft with 5/8" Dia.

						E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	19055K862	000000




								For Keyed Shaft with 7/8" Dia.

								E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	19055K864	000000




										For Keyed Shaft with 1" Dia.

										E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	19055K865	000000


										E	42"	6	32°	Clockwise	650	23,100	3.7	Steel	Shaft Collar	19055K225	000000




												For Keyed Shaft with 1 3/16" Dia.

												E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	19055K867	000000


												E	42"	6	32°	Clockwise	650	23,100	3.7	Steel	Shaft Collar	19055K227	000000




														For Keyed Shaft with 1 3/8" Dia.

														E	42"	4	38°	Clockwise	625	19,400	2	Steel	Shaft Collar	19055K869	000000

Direct-Drive Upblast Roof-Mount Exhaust Fans

Style 2

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. These exhaust fans draw stagnant and humid air out through your roof and then expel it up and away from the roof surface. All fans have a disconnect switch to turn off the power for servicing.

Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.

	Exhaust Fans														Mounting Bases
							Overall
	Style	Blade Dia.	Airflow @ SP	Volume (Sound) @ Distance	Motor Speed, rpm	Power, hp	Dia.	Ht.	Base Wd.	Wt., lb.	Ambient Temp., ° F	Housing Material		Each		Each
Totally Enclosed Motor Enclosure







				460V AC, Three Phase—Hardwire

				2	42"	17,000 ft³/min @ 1/2 in. H₂O 24,700 ft³/min @ 0 in. H₂O	75 dBA @ 5 ft.	1,150	3	50"	29 1/2"	54"	471	120	Steel	2081K15	000000000	2230K49	0000000

Hazardous Location Exhaust Fans

These fans have a motor that is UL listed for hazardous environments. Use them to draw stagnant and humid air out of a room or area.

120/230V AC, Single Phase—Hardwire

Image of Product. Front orientation. Exhaust Fans. Hazardous Location Exhaust Fans .

Belt Drive—Belt-drive fans are quieter and last longer than direct-drive fans because their components can be replaced if they’re worn or damaged. They come with collars, so you can connect these fans to a louver.

							Overall
Blade Dia.	Airflow, ft³/min	Volume (Sound) @ Distance	Drive Type	Motor Speed, rpm	No. of Speeds	Power, hp	Ht.	Wd.	Dp.	Housing Material	Blade Material	Certification	Hazardous Location Rating	Includes		Each
42"	14,600	74 dBA @ 10 ft.	Belt	1,725	1	3/4	46 3/4"	46 3/4"	30"	Steel	Aluminum	UL Listed	NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups F, G	Collar	2208K13	000000000

Exhaust-Side Exhaust Fan Guards for Wall-Mount Exhaust Fans

Protect the exhaust side of your wall-mount exhaust fans from debris.

	Overall
For Blade Dia.	Ht.	Wd.	Dp.	Material	Mounting Fasteners Included		Each
42"	45 3/4"	45 3/4"	6"	Galvanized Steel	Yes	19555K61	0000000

Hazardous Location Upblast Roof-Mount Exhaust Fans

With a UL-listed motor, these fans can be used in hazardous environments with combustible gases and dust to draw stagnant and humid air out through your roof, forcing it up and away from its surface.

Direct Drive

Image of Product. Front orientation. Exhaust Fans. Hazardous Location Upblast Roof-Mount Exhaust Fans.

Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance.

	Exhaust Fans														Mounting Bases
						Overall
	Blade Dia.	Airflow @ SP	Volume (Sound) @ Distance	Motor Speed, rpm	Power, hp	Dia.	Ht.	Base Wd.	Wt., lb.	Max. Ambient Temp., ° F	Housing Material	Hazardous Location Rating		Each		Each
Totally Enclosed Motor Enclosure







				240/460V AC, Three Phase—Hardwire

				42"	19,400 ft³/min @ 1/2 in. H₂O 25,300 ft³/min @ 0 in. H₂O	80 dBA @ 5 ft.	1,150	3	51"	34"	54"	520	100	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	4746N14	000000000	2230K49	0000000

Belt Drive

Belt-drive fans are quieter and last longer than direct-drive fans because their components can be replaced if they’re worn or damaged.

	Exhaust Fans														Mounting Bases
						Overall
	Blade Dia.	Airflow @ SP	Volume (Sound) @ Distance	Motor Speed, rpm	Power, hp	Dia.	Ht.	Base Wd.	Wt., lb.	Max. Ambient Temp., ° F	Housing Material	Hazardous Location Rating		Each		Each
Totally Enclosed Motor Enclosure







				240/460V AC, Three Phase—Hardwire

				42"	22,400 ft³/min @ 1/2 in. H₂O 27,800 ft³/min @ 0 in. H₂O	78 dBA @ 5 ft.	1,750	5	51"	34"	54"	720	100	Steel	NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G	4746N24	000000000	2230K49	0000000

Supply-Side Exhaust Fan Guards for Wall-Mount Exhaust Fans

Protect the supply side of your wall-mount exhaust fans from debris.

	Overall
For Blade Dia.	Ht.	Wd.	Dp.	Material	Mounting Fasteners Included		Each
42"	48 1/2"	48 1/2"	34 1/2"	Galvanized Steel	Yes	19555K21	0000000