Becker · U 4.40

U 4.40

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Oil-Lubricated Rotary VaneOEM data

Image: Becker

Pumping speed: 47.6 m³/h
Max. vacuum: 0.5 mbar
Motor power: 1.79 kW
Noise level: 71 dB(A)

Headline ratings converted to common units for comparison; the table below shows each figure exactly as published.

Technical data

Source: Becker product page · retrieved 2026-10-01

As published	US; SCFM	US	US; dB(A)	US; without Motor
Open Flow SCFM Pumping speed	28 SCFM oem source Source · 2026-10-01
Maximum Vacuum Max. vacuum		0.375 Torr Torr oem source Source · 2026-10-01
Horsepower Motor power		2.4 hp oem source Source · 2026-10-01
Noise Level dB(A) Noise level			71 dB(A) oem source Source · 2026-10-01
Weight without Motor Weight				84 lbs lbs oem source Source · 2026-10-01

Original extracted values are shown with their source and review status. Multiple values under the same condition remain separate for review.

Explore the parts

U 4.40, pulled apart

This model’s parts, by where they sit

Our drawing of the machine type, with the U 4.40's own parts from Becker's lists. Side view along the shaft. Oil-free (dry) pumps have no exhaust box oil, sight glass or oil filter; their exhaust filter is a dust filter.

Reviewed operating performance · 60 Hz

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Documents

View Operating Manual (U 4.40)manual · 8 pp
View Maintenance Guide (U 4.40)other · 16 pp
Download Spare Parts List (U 4.40)parts-list · 8 pp

Documents open on the manufacturer’s site.

Service parts · 66

Kit1

Vanes (KIT)90058500003

Filtration4

Fittings and hardware30

Lubrication2

Seals and gaskets1

Dichtring / Gasket / joint / guarnizione / Junta94803000000

Housing and covers5

Valves3

Piston and diaphragm parts3

Cooling3

Rotating parts1

rotor02000040500

Controls and instruments1

NIVEAUGEBER / LEVEL TRANSMITTER / CAPTEUR DE NIVEAU / INDICATORE DI LIVELLO / CODIFICADOR DE NIVEL74110399682

Other parts12

Part numbers from Becker’s parts lists, shop and instruction manuals. Open a part for its other models, replacements and suppliers.

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Parts diagrams

Exploded views from Becker’s own documents, with each position and part number as printed. Select a part to see what it fits, who sells it and what replaces it.

Exploded view · Download Spare Parts List (U 4.40), page 263 positions · own page

Click a part or its number. Drag to move, pinch or Ctrl + scroll to zoom. Arrows step through positions in the manufacturer's numbering (not an assembly sequence). The manufacturer's drawing shows the parts already pulled apart and gives no assembled positions; Vac & Air does not invent them. Positions were placed automatically from the manufacturer's numbering.

Select a part on the drawing or in the list to see its number, what it fits and where to get it. Turn on “select several” to build one quote for many parts.

Select several

Pos.	Part number	Description	Qty
	50010140500	pump body 960023 00100 Becker Lube SL 100 (food sector) - 1l
	02000040500	rotor
	90058500003	Vanes (KIT)
	00070040500	lid
	94561800000	THREADED PIN
	94537300000	SOCKET HEAD SCREW - DIN4762 M6x90 6) 7) 8)
	94537400000	INNENSECHSKANTSCHRAUBE 29 945374 00000 SOCKET HEAD SCREW
	94762801000	straight pin
	94580101000	Threaded pin
	90180700000	Screw
	94920300000	ZAHNSCHEIBE 18 949203 00000 TOOTHED SPRING WASHER
	01680005000	CLAMPING DISC 16 016800 16300 CLAMPING DISC
	53750010700	VALVE
	94691700000	STUD
	91710700000	cup spring
	94710500000	SECHSKANTMUTTER 57 947105 00000 HEX.NUT
	95122802000	LOCKING SCREW 307 951220 00100 LOCKING SCREW
	06810140500	flanges
	94563400000	GEWINDESTIFT / THREADED PIN / GOUPILLE FILETEE / SPINA FILETTATURA / VARILLA ROSCADA
	74131060000	Rubber buffer
	86780099559	FLOAT
	00500140300	Sieve
	72750399628	BLOW-OFF VALVE
	96541400000	Oil separating element (1x)
	01680240300	clamping disc
	92150050000	HANDLE
	00370040500	cover
	94532000000	INNENSECHSKANTSCHRAUBE 19 945320 00000 SOCKET HEAD SCREW
	95310300000	nozzle
	00500040500	metal filter
	94532100000	SOCKET HEAD SCREW - DIN4762 M6x25
	96020040500	cooler
	96020140500	Kühler / Cooler / refroidisseur / rafreddatore / REFRIGERADOR
	91780040500	retaining ring
	96070040500	ventilator hood
	94630800000	CYLINDER SCREW
	94875000000	BLIND RIVET
	91231700000	connecting screw
	94840700000	hollow screw
	01220340500	Pipe
	01220440500	Pipe
	01220640500	012204 40500 Leitung / Pipe / Tuyau / Condotto / Conducto
	06810040300	Stütze / Support pillar / Support intermediaire / Supporto / Apoyo
	74131080000	Gummipuffer / Rubber Buffer / Amortisseur en caoutchouc / Ammortizzatore in gomma / Amortiguador de goma
	94521800000	Sechskantschraube / hex. head screw / VIS HEXAGONALE / vite esagonale / TORNILLO HEXAGONAL
	00240140500	housing for oil separator
	90730900000	OIL SIGHT GLASS
	95121900000	LOCKING SCREW
	95122100000	LOCKING SCREW
	91680010000	COVER
	91231800000	connecting screw
	00330010700	NOZZLE
	91230000000	CONNECTING SCREW
	00940019000	HOLLOW HOLDING SCREW
	01220040300	Pipe
	96020540300	Kühler / Cooler / refroidisseur / rafreddatore / REFRIGERADOR
	94840200000	HOHLSCHRAUBE / HOLLOW SCREW / VIS CREUSE / VITE ESAGONALE / TORNILLO HUECO
	94803000000	Dichtring / Gasket / joint / guarnizione / Junta
	74000101000	Filter / Filtre / Filtro
	91230400000	Anschluss-schraube / Connection screw / Vis de raccordement / Vite di raccordo / Tornillo de empalme
	74110399682	NIVEAUGEBER / LEVEL TRANSMITTER / CAPTEUR DE NIVEAU / INDICATORE DI LIVELLO / CODIFICADOR DE NIVEL
	00780140500	screwed flange - standard
	00780240500	screwed flange 90° - optional
	53750699633	non return valve
	94770100000	key

Positions and part numbers as printed in Becker’s Download Spare Parts List (U 4.40), page 2 · view the source document