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Single-row super-precision angular contact ball bearing, 65 x 120 x 23 mm, 15° contact angle, open, P4A class for machine-tool spindles.
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| MFR / Brand | SKF |
|---|---|
| MPN | 7213CDP4ADGG9 |
| Model | 7213CD/P4A DGG9 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 65 mm |
| OD | 120 mm |
| Width | 23 mm |
| Material | Steel |
|---|---|
| Condition | New |
| Base Number | 7213 |
| Industry Terms | Spindle bearing; super precision angular contact ball bearing; machine tool spindle bearing; ABEC 7 angular contact |
| Bore Shaft Size | 65 mm (2.559 in) |
| Mpn Variants | 7213CDP4ADGG9; 7213 CD/P4A DGG9; 7213-CD-P4A-DGG9; 7213CD/P4A DGG9; 7213 CD P4A DGG9 |
| Arrangement Configuration | Universally matchable single bearing |
| Precision Class | P4A (P4 / ABEC 7 dimensional, running accuracy tighter than P4) |
| Additional Attributes | Operating temperature range -30 to +100 °C; supplied preserved; no lubrication groove in outer ring |
| Dynamic Load Rating | 66.3 kN / 14,900 lbf |
| Static Load Rating | 53.0 kN / 11,920 lbf |
| Series | 72 |
| Item Weight | 2.15 lbs (0.977 kg) |
| Number Of Rows | 1 |
| Bore Type | Cylindrical (straight) |
| Harmonization Code | 8482.10.90 |
| Contact Angle | 15° |
| Preload | Not specified |
| Bearing Material | Bearing steel |
| Part Number | 7213 CD/P4A DGG9 |
| Cross Reference 1 | SKF 7213 CDGA/P4A (related execution, light universally matchable preload) |
|---|---|
| Cross Reference 2 | SKF 7213 CDGB/P4A (related execution, medium preload) |
| Cross Reference 3 | SKF 7213 ACD/P4A (related size, 25° contact angle) |
SKF 7213 CD/P4A DGG9 single-row super-precision angular contact ball bearing. Bore: 65 mm. Outside diameter: 120 mm. Width: 23 mm. Series: 72, universally matchable spindle bearing execution. Open on both faces, cylindrical bore.
7213: series 72, bore code 13, 65 mm bore. CD: 15° contact angle, super-precision spindle design. P4A: dimensional accuracy to P4 / ABEC 7, with running accuracy held tighter than P4. DGG9 is carried as a manufacturer part-number variant and is searchable in that form.
A 15° contact angle favours speed and radial stiffness over axial capacity, which is why this execution is used on grinding and milling spindles rather than on heavy thrust duty. Basic dynamic load rating: 66.3 kN. Basic static load rating: 53 kN. Operating temperature range: -30 to +100 °C. Mass: 0.977 kg (2.15 lb).
One bearing, 1 Pc. Universally matchable: pieces from this execution mount together back-to-back, face-to-face or in tandem without a spacer, and a single piece also runs on its own.
Cylindrical bore, no lubrication groove in the outer ring. The bearing arrives preserved and ready to mount. Both rings locate axially against square shoulders, and the outer ring is clamped by the housing cover.
7213 CDGA/P4A, 7213 CDGB/P4A and 7213 CDGC/P4A are the same 65 x 120 x 23 mm bearing at light, medium and heavy universally matchable preload. 7213 ACD/P4A is a related size at a 25° contact angle. Searchable forms: 7213CDP4ADGG9, 7213 CD/P4A DGG9, 7213-CD-P4A-DGG9.
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