store Gearmotors: What They Are and How to Size a Replacement
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111 in stock
SNR 7004HG1DUJ84 super-precision angular contact bearing DU pair, 20 x 42 x 12 mm each, 25° contact angle, P4 / ABEC 7, medium preload, phenolic cage.
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| MFR / Brand | SNR |
|---|---|
| MPN | 7004HG1DUJ84 |
| Model | 7004A5/ACD 7004E T DUM P4 / 3MM9104WI CR DUM / 7004 H G1 DU J84 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 20 mm |
| OD | 42 mm |
| Width | 12 mm |
| Preload | Medium (J84) |
|---|---|
| Base Number | 7004 |
| Industry Terms | spindle bearing; super precision bearing; matched pair; duplex set; universally ground; machine tool bearing; phenolic cage bearing; angular contact pair; new old stock bearing |
| Application Types | Machine-tool spindles; grinding spindles and wheel heads; high-speed motor spindles; precision gearboxes and worktables; instrument and metrology drives |
| Total Width | 24 mm (matched pair) |
| Bore Shaft Size | 20 mm |
| Mpn Variants | 7004HG1DUJ84; 7004 H G1 DU J84; 7004-H-G1-DU-J84; 7004.H.G1.DU.J84; F20 7004 H G1 DU J84 (carton marking) |
| Manufacturer Status | Legacy SNR designation; SNR bearing operations are now NTN-SNR. This item is 1989-dated new old stock. |
| Compatible With Replaces | NSK 7004A5TYNDUMP4; FAG B7004-E-T-P4S-UM; SKF 7004 ACD/P4ADGA |
| Arrangement Configuration | DU — universally ground duplex pair |
| Precision Class | P4 / ISO 4 / ABEC 7 |
| Cage Type | Machined, outer-ring centred |
| Precision Rating | P4 / ABEC 7 |
| Rolling Elements | Ball |
| Cage Material | Fabric-reinforced phenolic laminate |
| Number Of Rows | 1 row per bearing (2-bearing matched set) |
| Contact Angle | 25° |
| Part Number | 7004HG1DUJ84 |
| Closure Type | Open |
| Cross Reference 1 | NSK 7004A5TYNDUMP4 - NSK A5 = 25° |
|---|---|
| Cross Reference 2 | FAG B7004-E-T-P4S-UM - FAG E = 25° |
| Cross Reference 3 | SKF 7004 ACD/P4ADGA - DGA = light preload |
SNR 7004HG1DUJ84 super-precision single-row angular contact ball bearings, supplied as a matched universally ground DU pair. Bore Diameter: 20 mm. Outside Diameter: 42 mm. Width: 12 mm per bearing. Total Width: 24 mm for the pair. Contact Angle: 25°. Preload: Medium (J84). Precision Class: P4 / ISO 4 / ABEC 7. Unit Quantity: 2 Pcs, one matched DU pair. Carton date code 05 1989, factory new old stock.
7004 — 70-series single-row angular contact ball bearing, 20 mm bore.
H — 25° contact angle in the SNR designation scheme.
G1 — laminated phenolic cage, outer-ring centred.
DU — duplex pair of universally ground bearings.
J84 — J8 is medium preload; the 4 is the precision class, ISO 4 / P4 / ABEC 7.
Bearing Type: Super-precision single-row angular contact ball bearing, universally ground duplex pair. Series: 70. Base Number: 7004. Rolling Elements: Steel balls. Cage Material: Fabric-reinforced phenolic laminate. Cage Type: Machined, outer-ring centred. Closure Type: Open. Arrangement: DU, universally ground duplex pair.
Bore Diameter: 20 mm. Outside Diameter: 42 mm. Width: 12 mm per bearing. Total Width: 24 mm for the pair. The outer rings carry etched sequence marks 1 and 2.
Cross-references: NSK 7004A5TYNDUMP4 (A5 = 25°), FAG B7004-E-T-P4S-UM (E = 25°), SKF 7004 ACD/P4ADGA (ACD = 25°, DGA = light preload). Searchable forms: 7004HG1DUJ84, 7004 H G1 DU J84, 7004-H-G1-DU-J84, 7004.H.G1.DU.J84, 7004-E-T-DUM-P4. SNR bearing operations are now NTN-SNR.
Each bearing is 20 mm bore, 42 mm outside diameter and 12 mm wide; the DU pair is 24 mm wide in total.
H gives a 25° contact angle, J84 gives medium preload, and the 4 in J84 is precision class ISO 4 / P4 / ABEC 7.
One unit is two bearings, a matched universally ground DU pair.
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