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Vac & Air/Becker/Catalogue

Becker · U 5.166

U 5.166

Data coverage & sourcesCompare this modelAsk about this model
Oil-Lubricated Rotary VaneOEM data
Becker U 5.166

Image: Becker

Pumping speed
197 m³/h
Max. vacuum
0.1 mbar
Motor power
4.77 kW
Noise level
72 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 publishedUS; SCFMUSUS; dB(A)US; without Motor
Open Flow SCFM
Pumping speed
116 SCFM
oem source
Source · 2026-10-01
Maximum Vacuum
Max. vacuum
0.075 Torr Torr
oem source
Source · 2026-10-01
Horsepower
Motor power
6.4 hp
oem source
Source · 2026-10-01
Noise Level dB(A)
Noise level
72 dB(A)
oem source
Source · 2026-10-01
Weight without Motor
Weight
154 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 5.166, pulled apart

Feet1Motor2Coupling3Bearings4Shaft seal5Cylinder / housing6Rotor and shaft7Exhaust box / oil reservoir8Oil9Gas ballast and relief valves10Inlet non-return valve11Screws, washers, pins12

This model’s parts, by where they sit

Our drawing of the machine type, with the U 5.166'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

Documents open on the manufacturer’s site.

Service parts · 71

Kit4
Rotating parts5
Lubrication2
Valves7
Seals and gaskets1
Fittings and hardware21
Housing and covers7
Cooling3
Motor and drive1
Controls and instruments1
Other parts19

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

Compare with another model

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 5.166), page 379 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.

Pos.Part numberDescriptionQty
00010254300PUMP BODY
02000154400ROTOR
50080454400SIDE SHIELD COMPLETELY, DRIVE SIDE
K4REPAIR KIT
Supplied in kit K4
50070454400SIDE SHIELD COMPLETELY
94874300000GROOVED PIN
K5SCREW KIT
Supplied in kit K5
03390054400VALVE PLATE
02910054400VALVE KEEPER
K5SCREW KIT
Supplied in kit K5
K5SCREW KIT
Supplied in kit K5
94773300000KEY
74132400000BUMPER
53750154400SUCTION VALVE UNIT
K5SCREW KIT
Supplied in kit K5
00240454401OIL TANK
00170054400OIL TANK CAP
06480054200ADAPTER 705 K3, K4 SCREW PLUG
K5SCREW KIT
Supplied in kit K5
K5SCREW KIT
Supplied in kit K5
03410399628ANCHORING SCREW 715 034900 54200 DIVERTER
92150050000HANDLE
K4REPAIR KIT
Supplied in kit K4
K4REPAIR KIT
Supplied in kit K4
50250154400SERVICE COVER (VARIANT 1 WITH BEARING PIN AND NOZZLE)
50250254400SERVICE COVER (VARIANT 2 WITH BEARING PIN AND NOZZLE)
03410199559PIVOT PIN
00330054400NOZZLE
56780399559FLOAT COMPLETELY 2
00370154400MAINTENANCE COVER (STANDARD)
50370054400MAINTENANCE COVER (WITH BLOW-OFF CONNECTION AND VALVE)
K5SCREW KIT
Supplied in kit K5
K5SCREW KIT
Supplied in kit K5
K5SCREW KIT
Supplied in kit K5
K5SCREW KIT
Supplied in kit K5
01220154400PIPE - INLET SIDE OF COOLER
51222354400PIPE
51222454400PIPE
05320154400CONNECTION FLANGE
94762801000straight pin
50230054400COUPLING WITH FAN
01680121300TIGHTENING DISC
94980700000Screw 182 014900 21600 FLANGES
01490154400MOTOR FLANGE
K5SCREW KIT
Supplied in kit K5
96020054400COOLER
01222054400PIPE - OUTET SIDE OF COOLER
94840200000HOHLSCHRAUBE / HOLLOW SCREW / VIS CREUSE / VITE ESAGONALE / TORNILLO HUECO
K5SCREW KIT
Supplied in kit K5
96424800000ELBOW
K5SCREW KIT
Supplied in kit K5
K5SCREW KIT
Supplied in kit K5
01221926200DRAIN LINE UNIT
00940019000HOLLOW HOLDING SCREW
76875399626GAS BALLAST COMPLETELY
01220554500GAS BALLAST PIPING
54840154400HOLLOW SCREW WITH NOZZLE
94840200000HOHLSCHRAUBE / HOLLOW SCREW / VIS CREUSE / VITE ESAGONALE / TORNILLO HUECO
01830154400HOOD
02080054400AIR GUIDE HOOD
06710054400LID - SUCTION VALVE
K5SCREW KIT
Supplied in kit K5
K5SCREW KIT
Supplied in kit K5
01510054400FOOT
74137200000BUMPER
74137300000BUMPER
K5SCREW KIT
Supplied in kit K5
94696900000STUD - M10X90
95160200000RING UNIT 304 951221 00100 LOCKING SCREW
91680199691MAINTENANCE INDICATOR - OPTIONAL
52160199400BALL VALVE (WITH HOSE CONNECTION 19MM)
03490054200DIVERTER
74342104000THERMOSTAT - OPTIONAL
74110799682LEVEL TRANSMITTER - OPTIONAL
54340300000TEMPERATURE SENSOR / MOUNTING KIT - OPTIONAL
90210800000902100 21600 Motorkupplung / COUPLING / ACCOUPLEMENT / GIUNTO / ACOPLAMIENTO
95101800000Stiftschraube / STUD / TOURILLON / L’ASTA A VITE / ESPÁRRAGO
94750600000Unterlegscheibe / WASHER / rondelle / Rondella / Arandela
94710600000SECHSKANTMUTTER 42 947106 00000 HEX.NUT

Positions and part numbers as printed in Becker’s Download Spare Parts List (U 5.166), page 3 · view the source document