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Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
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4 in stock
Matched tandem set of two single-row angular contact ball bearings, 50 x 90 x 20 mm each, medium preload, ABEC 5, phenolic separator. NDH Q20210DTX5A, 2 Pcs.
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| MFR / Brand | NDH |
|---|---|
| MPN | Q20210DTX5A |
| Model | Q-20210-DT-X5A |
| Bearing Type | Angular Contact Ball Bearing |
| ID | 50 mm |
| OD | 90 mm |
| Width | 20 mm |
| Preload | Medium |
|---|---|
| Base Number | Q20210 |
| Industry Terms | angular contact ball bearing; matched tandem set; duplex tandem; precision spindle bearing; phenolic separator bearing; New Departure bearing; obsolete bearing |
| Common Misspellings | NDH Q2021ODTX5A; Q-20210-DT-XSA; New Departure Hyat; Ndh; Q20210DTX5-A |
| Application Types | Machine tool spindles; precision drive spindles; legacy industrial equipment rebuilds |
| Bore Shaft Size | 50 mm (1.9685 in) |
| Mpn Variants | Q20210DTX5A; Q-20210-DT-X5A; Q 20210 DT X5A; Q20210DT; 20210DTX5A; 7210DT |
| Manufacturer Status | New Departure Hyatt was a General Motors division; the line passed to Delphi and is obsolete |
| Precision Class | ABEC 5 |
| Cage Material | Phenolic |
| Number Of Rows | 1 per bearing, 2 in the mounted set |
| Part Number | Q20210DTX5A |
NDH Q20210DTX5A matched tandem set of two single-row angular contact ball bearings, each 50 mm bore by 90 mm outside diameter by 20 mm wide. Two separate bearings, not one double-row bearing. Phenolic ball separator, rust-preventive slush coating. Unit Quantity: 2 Pcs.
Q — phenolic ball separator.
202 — dimension-series code corresponding to the ISO 72 series; with bore code 10 this is the ISO 7210 envelope, 50 x 90 x 20 mm.
10 — bore code, five millimetres per step, giving a 50 mm bore.
DT — duplex tandem, faces flush-ground and universally mountable.
X — medium preload.
5 — ABEC 5.
A — rust-preventive slush coating.
Bore Diameter: 50 mm (1.9685 in). Outside Diameter: 90 mm (3.5433 in). Width Per Bearing: 20 mm (0.7874 in). Total Width Of Tandem Stack: 40 mm (1.5748 in). Number Of Rows: 1 per bearing, 2 in the set. Arrangement: Duplex tandem (DT). Preload: Medium (X). Precision Class: ABEC 5. Rolling Elements: Steel balls. Cage Material: Phenolic ball separator. Protective Coating: Rust-preventive slush. Closure Type: Open. Country of Origin: United States.
Envelope per bearing: 50 mm bore x 90 mm outside diameter x 20 mm width. The two bearings are supplied as one matched tandem set with flush-ground faces.
The set is 2 Pcs: two single-row angular contact ball bearings ground as a tandem (DT) pair.
X is medium preload and 5 is ABEC 5. The A that follows marks the rust-preventive slush coating.
Each bearing is 50 mm bore, 90 mm outside diameter and 20 mm wide, the ISO 7210 envelope.
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