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Availability:
9 in stock
Single-row angular contact ball bearing, 30 x 62 x 16 mm, open, phenolic separator, duplex tandem set, light preload, ABEC-7. Sold as 2 Pcs.
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$152.20
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| MFR / Brand | NDH |
|---|---|
| MPN | Q20206DTL7A |
| Model | Q 20206 DT L 7 A / 7206C / 2MM206 WI CR DUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 30 mm |
| OD | 62 mm |
| Width | 16 mm |
| Material | Chrome Steel |
|---|---|
| Series | 7200 |
| Condition | New |
| Lubricant | Oil |
| Preload | Light Preload |
| Base Number | 20206 |
| Industry Terms | duplex tandem pair, matched set angular contact, spindle bearing, phenolic cage bearing, universally ground bearing |
| Common Misspellings | Q20206DTL7A, Q20206 DTL 7A, NDH Q-20206-DT-L-7-A, New Departure Q20206DTL7A, Departure 20206 |
| Application Types | Machine tool spindles, precision grinding spindles, small gearbox thrust positions |
| Total Width | 32 mm (1.2598 in) for the tandem pair |
| Bore Shaft Size | 30 mm (1.1811 in) |
| Mpn Variants | Q20206DTL7A, Q-20206-DTL-7-A, Q 20206 DTL 7A, Q20206DTL7, 20206DTL7A, 20206, 206 |
| Manufacturer Status | Obsolete. New Departure Hyatt was a General Motors division; the bearing line passed through Delphi and this designation is no longer produced. |
| Arrangement Configuration | Duplex tandem (DT), universally ground for DT / DB / DF |
| Precision Class | ABEC-7 |
| Additional Attributes | Rust-preventive slush per the A suffix |
| Min Temp | -54°C |
| Cage Type | Outer Ring Guided |
| Dynamic Load Rating | 15.6 kN / 3507 lbf |
| Static Load Rating | 10 kN / 2248 lbf |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Ball |
| Max Temp | 121°C |
| Item Weight | 0.8 lbs |
| Cage Material | Phenolic |
| Limiting Speed | 28000 rpm |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Relubrication Feature | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Mounting Arrangement | Universal |
| Design Units | Metric |
| Running Accuracy | High Precision |
| Part Number | Q20206DTL7A |
| Running Accuracy Radial And Axial Runout | High Precision |
| Cross Reference 1 | ISO 7206 (same 30x62x16 mm envelope) |
|---|---|
| Cross Reference 2 | Fafnir 2MM206WI-CR-DUL (related size, light-preload duplex, 30x62x16 mm) |
New Departure Hyatt Q20206DTL7A single-row angular contact ball bearing, 30 mm bore, 62 mm outside diameter, 16 mm width. Open on both faces, phenolic ball separator, faces flush ground for duplex tandem mounting.
Q – nonmetallic (phenolic) ball separator
20206 – New Departure 20200 angular contact series; bore code 06 = 30 mm; ISO 7206 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
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, which matters most at the small bores where surface speeds climb fast. 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.
Bore: 30 mm (1.1811 in)
Outside diameter: 62 mm (2.4409 in)
Width, each bearing: 16 mm (0.6299 in)
Rows: 1 per bearing
Rolling element: ball
Closure: open
Precision class: ABEC-7
Preload: light (L)
Separator: phenolic
Arrangement: duplex tandem, universally ground
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 30 x 62 x 16 mm envelope matches the ISO 7206 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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