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Angular contact ball bearing in polished steel on a clean studio background — for machine tool spindles, pumps and compressors

Angular Contact Ball Bearings — 72 / 73 Series & Matched Pairs

NKEN supplies angular contact ball bearings in the 72 and 73 series — single-row, double-row, and matched pairs in DB, DF and DT arrangements — for machine-tool spindles, pumps, compressors and high-speed motors, where combined radial and axial loads and precise shaft guidance matter. Standard 15°, 25° and 40° contact angles are available, with precision grades up to P4 for spindle applications.

Dimensions follow the standard 72/73 series in the table below, so NKEN bearings interchange directly with the bearing you are replacing. Hybrid ceramic executions (Si3N4 balls) for very high speeds are produced on the ceramic line — ask for the hybrid option in your inquiry.

  • 72 and 73 series, contact angles 15° / 25° / 40°
  • Matched pairs DB, DF, DT with controlled preload
  • Precision P0 standard; P5 and P4 for spindles
  • Double-row executions for compact pump and compressor designs
  • Hybrid ceramic versions for high-speed spindles
Series7200, 7300 single row; 3200, 3300 double row
Contact angle15° (C), 25° (AC), 40° (standard)
ArrangementsSingle, DB, DF, DT matched pairs
PrecisionP0, P6, P5, P4
ApplicationsSpindles, pumps, compressors, gearboxes, high-speed motors

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Angular Contact Ball Bearings — models, dimensions & cross-reference

ModelBore d (mm)OD D (mm)Width B (mm)Type
7205254712Single row
7206306216Single row
7207357217Single row
7208408018Single row
7209458519Single row
7210509020Single row
7305256217Single row, heavy
7306307219Single row, heavy
7307358021Single row, heavy
7308409023Single row, heavy

Standard 72/73 boundary dimensions. State contact angle, arrangement and precision grade (e.g. 7307 AC DB P5) with your inquiry for an exact quotation.

Full range index (105 designations)

320032013202320332043205320632073208320932103211321232133214321532163217321832193220322233023303330433053306330733083309331033113312331333143315331633173318331933203322720072017202720372047205720672077208720972107211721272137214721572167217721872197220722172227224722672287230723272347236723872447248730173027303730473057306730773087309731073117312731373147315731673177318731973207321732273247326732873307332733473367338

Full range — dimensions and datasheets on request.

Applications

Angular Contact Ball Bearings — questions buyers ask

Can you supply matched pairs with preload for a spindle rebuild?
Yes — 72/73 series bearings are supplied as DB, DF or DT matched pairs with light, medium or heavy preload. Tell us the spindle and the pair arrangement you are replacing.
Is the 7307 bearing available in P5 precision?
Yes, P5 and P4 grades are available on spindle sizes. State the grade in the designation when you inquire.
Do you offer hybrid angular contact bearings?
Yes — Si3N4 ball hybrid executions are made on our ceramic line for very high-speed spindles. Ask for the hybrid option with your model number.

Get a quote for Angular Contact Ball Bearings

Tell us the model and quantity — we reply with price, stock status and delivery time. Free samples available for most models. Prefer to talk? WhatsApp James Ke at +86 188 9536 7568 (24/7 support).

Your inquiry goes straight to our sales inbox and is answered by James Ke personally, usually within one business day. You can also write directly to james@nkzbearing.com or use WhatsApp.

Send us the bearing number you buy today.

We cross-reference it against 2,000+ stocked NKEN models and quote price, stock and delivery — free samples on request.

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