Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
2 in stock
Single-row angular contact ball bearing, 80 x 140 x 26 mm, open, phenolic separator, duplex tandem set, light preload, ABEC-7. Sold as 2 Pcs.
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$428.38

2 in stock
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| MFR / Brand | NDH |
|---|---|
| MPN | Q20216DTL7A |
| Model | Q20216-DTL-7A |
| Bearing Type | Angular Contact Ball Bearing |
| ID | 80 mm |
| OD | 140 mm |
| Width | 26 mm |
| Base Number | 20216 |
|---|---|
| Industry Terms | duplex tandem pair, matched set angular contact, spindle bearing, phenolic cage bearing, universally ground bearing |
| Common Misspellings | Q20216DTL7A, Q20216 DTL 7A, NDH Q-20216-DT-L-7-A, New Departure Q20216DTL7A, Departure 20216 |
| Application Types | Machine tool spindles, precision gearbox thrust positions, pump and compressor thrust ends |
| Bore Shaft Size | 80 mm (3.1496 in) |
| Mpn Variants | Q20216DTL7A, Q20216-DTL-7A, Q 20216 DTL 7A, Q20216DTL7, 20216DTL7A, 20216 |
| Manufacturer Status | Obsolete. New Departure Hyatt was a General Motors division; the bearing line passed through Delphi and this designation is no longer produced. |
| Number Of Rows | 1 per bearing |
| Part Number | Q20216DTL7A |
New Departure Hyatt Q20216DTL7A single-row angular contact ball bearing, 80 mm bore, 140 mm outside diameter, 26 mm width. Open on both faces, phenolic ball separator, faces flush ground for duplex tandem mounting.
Light preload is the lowest of the three NDH duplex classes — L light, X medium, T heavy — and it favours speed and low heat rise over maximum stiffness. Tandem rows take thrust in the same direction and share it, roughly doubling one-direction axial capacity over a single bearing. ABEC-7 is the precision grade used in machine tool spindle positions, holding bore, outside diameter, width and ring runout far tighter than commercial ABEC-1 stock.
2 Pcs, one matched tandem set of single-row bearings. A DT designation is a matched set, not a double-row bearing.
Match marks on the ring faces are aligned as ground when the set is stacked. Shaft and housing seats are held to the tolerance grade of the bearing, and clamp load passes through the ring faces rather than the separator. Preload comes from the flush-ground faces once the rings are clamped solid.
The 80 x 140 x 26 mm envelope matches the ISO 7216 series. New Departure Hyatt was a General Motors division and the line later passed through Delphi, so this designation is obsolete and is searched alongside its ISO number. A same-envelope bearing built to a different contact angle, preload class or separator material is a related size rather than an interchange.
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