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Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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NTN 7304DBGN angular contact ball bearing matched pair, 20 x 52 x 15 mm each, 30° contact angle, back-to-back (DB), 2 Pcs, medium 7300 series, open.
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| MFR / Brand | NTN |
|---|---|
| MPN | 7304DBGN |
| Model | 7304 DB GN |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 20 mm |
| OD | 52 mm |
| Width | 15 mm |
| Series | 7300 |
|---|---|
| Material | Chrome Steel |
| Total Width | 30 mm (pair) |
| Mpn Variants | 7304DBGN, 7304-DB-GN, 7304 DB GN, 7304DB |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 84821000 |
| Contact Angle | 30° |
| Mounting Arrangement | Back-to-back (DB) |
| Industry Terms | angular contact ball bearing pair, duplex back-to-back bearing, matched pair 7304, 30 degree angular contact, DB set |
| Common Misspellings | NTN 7304 DBGN, NTN 7304DB GN, NTN 7304-DBGN, NTN 7304DGBN |
| Application Types | machine tool spindles; pumps; gearboxes; ball screw supports |
| Cross Reference 1 | NSK 7304A DB |
|---|---|
| Cross Reference 2 | Koyo 7304 DB |
| Cross Reference 3 | Nachi 7304 DB |
The NTN 7304DBGN is a matched pair of single-row angular contact ball bearings, ground for back-to-back mounting. Bore Diameter: 20 mm. Outside Diameter: 52 mm. Width: 15 mm per bearing. Total Width: 30 mm (pair). Contact Angle: 30°. Unit Quantity: 2 Pcs, one matched back-to-back pair.
73 — single-row angular contact ball bearing, medium 03 dimension series.
04 — bore code, 04 x 5 = 20 mm bore.
No angle letter — 30° contact angle, NTN standard.
DB — duplex back-to-back. Two single-row bearings ground as a matched set, outer ring back faces together, taking axial load in both directions and resisting tilting moment. Not a double-row bearing.
GN — NTN matched-pair preload code.
Bore Diameter: 20 mm. Outside Diameter: 52 mm. Width: 15 mm per bearing. Total Width: 30 mm (pair). Contact Angle: 30°. Mounting Arrangement: Back-to-back (DB). Rolling Elements: Ball. Number Of Rows: 1 per bearing. Closure Type: Open. Bore Type: Straight. Series: 7300. Unit Quantity: 2 Pcs.
Back-to-back pair: two bearings of 15 mm width each, 30 mm total stack, 20 mm bore, 52 mm outside diameter.
Cross-references at 20 x 52 x 15 mm, 30° contact angle, back-to-back pair: NSK 7304A DB, Koyo 7304 DB, Nachi 7304 DB. Part number variants: 7304DBGN, 7304-DB-GN, 7304 DB GN, 7304DB.
30°; there is no angle letter in the designation.
Two single-row bearings, a matched back-to-back pair.
20 mm bore, 52 mm outside diameter and 15 mm width.
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A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
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Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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