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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
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1 in stock
Super-precision angular contact ball bearing, 150 x 225 x 35 mm, 15° contact angle, class P4A. Universally matchable, extra light preload GA.
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| MFR / Brand | SKF |
|---|---|
| MPN | 7030 CDGA/P4A |
| Model | 7030CD/P4A DGA 2MM9130WI DUL 7030C |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 150 mm |
| OD | 225 mm |
| Width | 35 mm |
| Material | Steel |
|---|---|
| Series | 7000 |
| Preload | Extra light (GA) |
| Base Number | 7030 |
| Industry Terms | Spindle bearing; super-precision bearing; precision angular contact bearing; machine tool bearing; large-bore spindle bearing |
| Common Misspellings | 7030 CDGA P4A; 7030CGDA/P4A; 70 30 CDGA; 7030CDG4/P4A; 7003 CDGA/P4A |
| Application Types | Machine tool spindles; grinding spindles; high-speed motor spindles; precision rotary tables |
| Overall Width | 35 mm |
| Mpn Variants | 7030 CDGA/P4A; 7030-CD/P4ADGA; 7030-CD-P4A-DGA; 7030CDP4ADGA; 7030C |
| Arrangement Configuration | Universally matchable |
| Precision Class | P4A |
| Additional Attributes | Matched condition: measuring load, class A; high-capacity D design; two-point contact; one-piece rings; supplied without lubricant |
| Cage Type | Outer-ring shoulder-guided |
| Dynamic Load Rating | 172,000 N |
| Static Load Rating | 190,000 N |
| Precision Rating | P4A |
| Rolling Elements | Ball |
| Item Weight | 4.09 kg (9.02 lb) |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Mounting Arrangement | Universally matchable — back-to-back, face-to-face or tandem |
| Bearing Material | Bearing steel |
| Cross Reference 1 | Fafnir 2MM9130WICRSUL - light preload vs GA |
|---|---|
| Cross Reference 2 | FAG B7030-C-T-P4S-UL - light preload vs GA |
| Cross Reference 3 | NSK 7030CTRSULP4 - light preload vs GA |
| Cross Reference 4 | RHP 7030X2TRSULP4 - light preload vs GA |
SKF 7030 CDGA/P4A super-precision, high-capacity, universally matchable single-row angular contact ball bearing. Bore Diameter: 150 mm. Outside Diameter: 225 mm. Overall Width: 35 mm. Contact Angle: 15°. Open, supplied without lubricant. Item Weight: 4.09 kg (9.02 lb) per bearing.
70 — ISO light dimension series 10. A 150 mm bore carries a 225 mm outside diameter in a 35 mm section.
30 — bore code. 30 × 5 = 150 mm.
C — 15° contact angle.
D — high-capacity internal design.
GA — universally matchable, extra light preload.
P4A — SKF super-precision tolerance class: P4 dimensional accuracy with running accuracy held tighter still.
Dynamic Load Rating: 172,000 N. Static Load Rating: 190,000 N. Both figures are per bearing. Precision Class: P4A. Contact Angle: 15°. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Cage Type: Outer-ring shoulder-guided. Bearing Material: Bearing steel. Preload: Extra light (GA).
Mounting Arrangement: universally matchable, back-to-back, face-to-face or tandem. Matched condition: measuring load, class A. Contact type: normal, two-point. Both rings are one piece. Radial load is carried together with axial load acting in one direction. Harmonization Code: 8482.10.50.
Same 150 x 225 x 35 mm size, 15° angle and super-precision class at light preload (UL) rather than extra light (GA): Timken/Fafnir 2MM9130WICRSUL, FAG B7030-C-T-P4S-UL, NSK 7030CTRSULP4, RHP 7030X2TRSULP4. Executions GB (light preload) and GC (medium preload) are separate SKF part numbers in the same size.
SKF publishes a dynamic rating of 172,000 N and a static rating of 190,000 N per bearing.
GA is the universally matchable, extra light preload execution.
15°, from the C in the designation.
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