New Inventory Daily | Same Day Free Shipping

13k+ reviews

NDHQ20217DTL7AAngular Contact Ball Bearing Tandem Duplex Set 85x150x28 mm ABEC-7 Light Preload Phenolic Separator

Condition: New

Availability:

1 in stock

Single-row angular contact ball bearing, 85 x 150 x 28 mm, open, phenolic separator, duplex tandem set, light preload, ABEC-7.

List Price

$420.71

1 in stock

Prefer eBay? Buy this item on our store (opens in a new tab)

Small green outline icon of a shipping box with a clock, indicating delivery time
Availability

1 in stock

On the Shelf & Ready to Ship

Green shield badge reading "Same-Day Shipping" with box and delivery truck icons
Free Shipping

On all orders

Green shield icon with box and arrow graphic labeled "Free Returns"
Free Returns

No Risk, No Hassle

Specifications

Key Specifications

MFR / BrandNDH
MPNQ20217DTL7A
ModelQ 20217 DT L7A / 7217
Bearing TypeAngular Contact Ball Bearing, Open
ID85 mm
OD150 mm
Width28 mm

Technical Specifications

MaterialBearing Steel
Series7200
Base Number20217
Industry Termsduplex tandem pair, matched set angular contact, spindle bearing, phenolic cage bearing, universally ground bearing
Common MisspellingsQ20217DTL7A, Q20217 DTL 7A, NDH Q-20217-DT-L-7-A, New Departure Q20217DTL7A, Departure 20217
Application TypesMachine tool spindles, precision gearbox thrust positions, pump and compressor thrust ends
Bore Shaft Size85 mm (3.3465 in)
Mpn VariantsQ20217DTL7A, Q-20217-DT-L7-A, Q 20217 DTL 7A, Q20217DTL7, 20217DTL7A, 20217
Manufacturer StatusObsolete. New Departure Hyatt was a General Motors division; the bearing line passed through Delphi and this designation is no longer produced.
Closure TypeOpen
Rolling ElementsBall
Number Of Rows1 per bearing
Bore TypeStraight
Snap Ring IncludedWithout Snap Ring
Harmonization Code8482.10.50
Part NumberQ20217DTL7A
Seller Part Number: B-L7#DFT06N

Product Description

What this part is

New Departure Hyatt Q20217DTL7A single-row angular contact ball bearing, 85 mm bore, 150 mm outside diameter, 28 mm width. Open on both faces, phenolic ball separator, faces flush ground for duplex tandem mounting.

Decoding the designation

Q – nonmetallic (phenolic) ball separator
20217 – New Departure 20200 angular contact series; bore code 17 = 85 mm; ISO 7217 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: 85 mm (3.3465 in)
Outside diameter: 150 mm (5.9055 in)
Width, each bearing: 28 mm (1.1024 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

Supplied as a matched set of single-row bearings, not a double-row bearing. Each bearing is a separate part and the grind is what pairs them.

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 85 x 150 x 28 mm envelope matches the ISO 7217 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 tolerance grade is a related size rather than an interchange.

You May Also Like

Need help finding the right part?

Our team can locate, cross-reference, and source all parts.

Assortment of MRO parts including motor, bearing, gears, cylinder and valve

News

Replacement PCBs for Legacy CNC: A Field Guide

Siemens put a number on the bad day you’re having.

Sell Surplus Servo Drives: Who Actually Buys in Bulk

Rockwell’s own product page for the Kinetix 6000 is down

Additional Resources

Need help finding the right part?

Our team can locate, cross-reference, and source all parts.

Get In Touch
Need help finding the right part?

Our team can locate, cross-reference, and source all parts.

Get In Touch

Sort

Brand

Price

MPN

Categories

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.