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NDHQ20216DTL7AAngular Contact Ball Bearing Tandem Duplex Set 80x140x26 mm ABEC-7 Light Preload Phenolic Separator

Condition: New

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.

List Price

$428.38

2 in stock

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Specifications

Key Specifications

MFR / BrandNDH
MPNQ20216DTL7A
ModelQ20216-DTL-7A
Bearing TypeAngular Contact Ball Bearing
ID80 mm
OD140 mm
Width26 mm

Technical Specifications

Base Number20216
Industry Termsduplex tandem pair, matched set angular contact, spindle bearing, phenolic cage bearing, universally ground bearing
Common MisspellingsQ20216DTL7A, Q20216 DTL 7A, NDH Q-20216-DT-L-7-A, New Departure Q20216DTL7A, Departure 20216
Application TypesMachine tool spindles, precision gearbox thrust positions, pump and compressor thrust ends
Bore Shaft Size80 mm (3.1496 in)
Mpn VariantsQ20216DTL7A, Q20216-DTL-7A, Q 20216 DTL 7A, Q20216DTL7, 20216DTL7A, 20216
Manufacturer StatusObsolete. New Departure Hyatt was a General Motors division; the bearing line passed through Delphi and this designation is no longer produced.
Number Of Rows1 per bearing
Part NumberQ20216DTL7A
Seller Part Number: B-DE3#KL3OEJ

Product Description

What this part is:

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.

Decoding the designation:

  • Q – nonmetallic (phenolic) ball separator
  • 20216 – New Departure 20200 angular contact series; bore code 16 = 80 mm; ISO 7216 dimensional envelope
  • DT – duplex tandem set, all faces flush ground to preload requirement for universal mounting in tandem, back-to-back or face-to-face
  • L – light preload
  • 7 – ABEC-7 tolerance class
  • A – rust-preventive slush

What these specs mean in practice:

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.

Published specifications:

  • Bore: 80 mm (3.1496 in)
  • Outside diameter: 140 mm (5.5118 in)
  • Width, each bearing: 26 mm (1.0236 in)
  • Rows: 1 per bearing
  • Rolling element: ball
  • Closure: open
  • Precision class: ABEC-7
  • Preload: light (L)
  • Separator: phenolic
  • Arrangement: duplex tandem, universally ground

Quantity and configuration:

2 Pcs, one matched tandem set of single-row bearings. A DT designation is a matched set, not a double-row bearing.

Fitting notes:

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.

Interchange guidance:

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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