- Pumping speed
- 27.2 m³/h
- Max. vacuum
- 2 mbar
- Motor power
- 0.895 kW
- Noise level
- 69 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 | ||||
| Maximum Vacuum Max. vacuum | ||||
| Horsepower Motor power | ||||
| Noise Level dB(A) Noise level | ||||
| Weight without Motor Weight |
Original extracted values are shown with their source and review status. Multiple values under the same condition remain separate for review.
Explore the parts
O 5.21, pulled apart
This model’s parts, by where they sit
Our drawing of the machine type, with the O 5.21'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 Data Sheet (O 5.21)datasheet · 5 pp
- View Operating Manual (O 5.25)manual · 38 pp
- Download Spare Parts List (O 5.21)parts-list · 14 pp
Documents open on the manufacturer’s site.
Service parts · 44
Kit6
Lubrication4
Valves4
Seals and gaskets1
Housing and covers8
Fittings and hardware6
Rotating parts1
Other parts12
- FIXING SLEEVE01670064300
- TRANSPORT DEVICE02510064300
- RUBBER BUFFER94130500000
- 0.5 l96000320050
- 5l96002300400
- 5l96002300600
- BECKER LUBE SL 68 (FOOD SECTOR) 1l 896002300701
- 5l96002300801
- BECKER LUBE SL 32 (FOOD SECTOR) 1l96002300901
- BECKER LUBE SM 68 (FOOD SECTOR) 1l 896003700101
- 5l96003700201
- BECKER LUBE SM 32 (FOOD SECTOR) 1l96003700501
Part numbers from Becker’s parts lists, shop and instruction manuals. Open a part for its other models, replacements and suppliers.
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 (O 5.21), page 346 positions
The positions on this drawing haven’t been placed yet: choose a position in the list for its part. Drag to move, pinch or Ctrl + scroll to zoom.
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 number | Description | Qty |
|---|---|---|---|
| 00011064300 | HOUSING | ||
| 02000064300 | ROTOR | ||
| 90059200003 | ROTOR VANE KIT | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| 01670064300 | FIXING SLEEVE | ||
| 03391064300 | VALVE PLATE | ||
| 02911064300 | VALVE KEEPER | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| K1 | SET OF SEALS Supplied in kit K1 | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| 53750064300 | FLANGE COMPLETE, SIDE CONNECTION | ||
| 50782564300 | FLANGE COMPLETE, VARIANTE 1 | ||
| 50780464300 | FLANGE COMPLETE, VARIANTE 2 | ||
| 00780064300 | SCREWED FLANGE | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| K4 | SIEVE KIT Supplied in kit K4 | ||
| 94823400000 | SEEGER CIRCLIP | ||
| K5 | SUCTION VALVE KIT Supplied in kit K5 | ||
| 00240064200 | OIL TANK A | ||
| 00240064300 | OIL TANK A | ||
| 00240164200 | OIL TANK B | ||
| 00240164300 | OIL TANK B | ||
| K1 | SET OF SEALS Supplied in kit K1 | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| 00370064300 | MAINTENANCE COVER | ||
| 00370264300 | MAINTENANCE COVER (U 5.40 XL K), WITH ¾" EXHAUST AIR CONNECTION | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| K1 | SET OF SEALS Supplied in kit K1 | ||
| K1 | SET OF SEALS Supplied in kit K1 | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| K6 | FLOAT VALVE KIT Supplied in kit K6 | ||
| K6 | FLOAT VALVE KIT Supplied in kit K6 | ||
| 96541064200 | OIL SEPARATING ELEMENT | ||
| 96541064300 | OIL SEPARATING ELEMENT | ||
| K6 | FLOAT VALVE KIT Supplied in kit K6 | ||
| K1 | SET OF SEALS Supplied in kit K1 | ||
| K2 | OIL SIGHT GLASS KIT Supplied in kit K2 | ||
| K2 | OIL SIGHT GLASS KIT Supplied in kit K2 | ||
| 95120500000 | SCREW PLUG G1/8 | ||
| K1 | SET OF SEALS Supplied in kit K1 | ||
| 76871399626 | GAS BALLAST VALVE (OPTIONAL) | ||
| 56872564300 | GAS BALLAST VALVE 2 (OPTIONAL) | ||
| 01510264300 | FOOT | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| 94130500000 | RUBBER BUFFER | ||
| K3 | SCREW KIT Supplied in kit K3 | ||
| 02510064300 | TRANSPORT DEVICE | ||
| K3 | SCREW KIT Supplied in kit K3 |
Positions and part numbers as printed in Becker’s Download Spare Parts List (O 5.21), page 3 · view the source document