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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
SKF super-precision angular contact ball bearing, 40 x 68 x 15 mm, 25 degree contact angle, ABEC 7. Universally matchable, extra light preload.
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| MFR / Brand | SKF |
|---|---|
| MPN | 7008-ACDGA/P4A |
| GTIN | 7316577087577 |
| Model | 7008ACD/P4A DGA / 3MM9108WI CR SUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 68 mm |
| Width | 15 mm |
| Material | Bearing steel |
|---|---|
| Series | 70 |
| Preload | Extra light |
| Base Number | 7008 |
| Mpn Variants | 7008-ACDGA/P4A; 7008-ACD-GA-P4A; 7008ACDGAP4A; 7008 ACD/P4A; 7008 |
| Precision Class | ABEC 7 / P4A |
| Dynamic Load Rating | 15,900 N |
| Static Load Rating | 10,400 N |
| Rolling Elements | Ball |
| Item Weight | 0.19 kg (0.42 lb) |
| Number Of Rows | 1 |
| Bore Type | Cylindrical |
| Snap Ring Included | No |
| Limiting Speed | 19,000 rpm grease; 30,000 rpm oil-air |
| Harmonization Code | 8482.10.50.68 |
| Contact Angle | 25° |
| Bearing Material | Bearing steel |
| Closure Type | Open |
| Cross Reference 1 | FAG B7008-E-T-P4S |
|---|---|
| Cross Reference 2 | NSK 7008A5 |
| Cross Reference 3 | RHP 7008 A5 |
| Cross Reference 4 | SNFA EX40 7CE3 |
| Cross Reference 5 | SKF 7008 CD/P4A (related, 15° contact angle) |
SKF 7008 ACD/P4A super-precision single-row angular contact ball bearing, 40 x 68 x 15 mm, 25° contact angle, ABEC 7 / P4A, universally matchable, extra light preload. One bearing, open on both faces.
7008 — ISO 70 light series at a 40 mm bore.
ACD — SKF’s 25° super-precision design.
GA — universally matchable, extra light preload.
P4A — super-precision tolerance class.
Bore Diameter: 40 mm. Outside Diameter: 68 mm. Overall Width: 15 mm. Contact Angle: 25°. Precision Class: ABEC 7 / P4A. Preload: Extra light (GA). Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Cylindrical. Closure Type: Open. Bearing Material: Bearing steel. Series: 70. Base Number: 7008. Dynamic Load Rating: 15,900 N. Static Load Rating: 10,400 N. Limiting Speed: 19,000 rpm grease; 30,000 rpm oil-air. Item Weight: 0.19 kg (0.42 lb). Ball Complement: 18 balls of 7.938 mm diameter. Unit Quantity: 1 Pc. GTIN: 7316577087577.
Load-centre distance a: 20.2 mm from the side face. Shaft abutment diameter da and db: 44.6 mm minimum. Housing abutment diameter Da: 63.4 mm maximum. Housing abutment diameter Db: 66 mm maximum. Shaft fillet radius ra: 1 mm maximum. Housing fillet radius rb: 0.3 mm maximum. Bearing chamfers r1,2: 1 mm minimum and r3,4: 0.3 mm minimum. Oil nozzle position dn: 50.8 mm. Reference grease quantity: 2.4 cm³ per bearing.
25° super-precision 7008 equivalents: FAG B7008-E-T-P4S (E on a B70 designation is 25°), NSK 7008A5 (A5 is 25°), RHP 7008 A5 and SNFA EX40 7CE3 (CE3 is 25°). SKF 7008 CD/P4A has the same envelope and precision at a 15° contact angle.
Contact Angle: 25°, from the ACD code.
Dynamic Load Rating: 15,900 N. Static Load Rating: 10,400 N. Limiting Speed: 19,000 rpm grease; 30,000 rpm oil-air.
GTIN: 7316577087577.
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