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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
Availability:
1 in stock
Single-row angular contact ball bearing, 85 x 130 x 22 mm, 30 degree contact angle, ABEC 3, ground for a back-to-back pair, supplied as one half-pair.
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| MFR / Brand | NSK |
|---|---|
| MPN | 7017ADBC7P6-1/2PR |
| Model | 7017 A DB C7 P6/ 3M9117 WI CR DB |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 85 mm |
| OD | 130 mm |
| Width | 22 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 |
| Base Number | 7017 |
| Industry Terms | Angular contact bearing; half pair; back-to-back pair; DB pair; matched set; precision ball bearing; thrust bearing |
| Common Misspellings | 7017 ADB C7 P6; 7017ADBC7P6 1/2PR; NSK 7017 A DBC7P6; 7017ADBC7P6-1-2PR |
| Application Types | Machine spindles; gearbox and pump shafts; vertical shafts carrying axial load; precision positioning shafts |
| Bore Shaft Size | 85 mm (3.3465 in) |
| Mpn Variants | 7017ADBC7P6-1/2PR; 7017-A-DB-C7-P6; 7017 A DB C7 P6; 7017ADBLP6; 7017ADB; 7017A |
| Precision Class | ABEC 3 / P6 |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50.68 |
| Contact Angle | 30° |
| Mounting Arrangement | Back-to-back (DB) |
| Part Number | 7017ADBC7P6-1/2PR |
One single-row angular contact ball bearing, NSK 7017A. Bore 85 mm, outside diameter 130 mm, width 22 mm, 30° contact angle, ISO class 6 (ABEC 3). Ground for a back-to-back light-preload pair and supplied as one half of that pair.
70 — ISO dimension series 70.
17 — bore code, 85 mm bore.
A — 30° contact angle in the NSK scheme (A5 = 25°, C = 15°).
DB — back-to-back matched arrangement.
P6 — ISO class 6, corresponding to ABEC 3.
-1/2PR — half-pair marking: one bearing.
DBL — alternate carton form 7017A DBL P6; L is the light preload grade.
Bore Diameter: 85 mm (3.3465 in). Outside Diameter: 130 mm. Overall Width: 22 mm. Contact Angle: 30°. Precision Class: ABEC 3 / P6. Number Of Rows: 1. Rolling Elements: Steel balls. Bore Type: Straight. Seal Type: Open. Series: ISO dimension series 70. Base Number: 7017. Mounting Arrangement: Back-to-back (DB). Unit Quantity: 1 Pc.
A single-row angular contact ball bearing carries thrust in one direction. A completed back-to-back pair takes thrust in both directions and the load lines diverge outward, giving moment stiffness. The matching second half is a 7017A of the same DB grind and preload grade.
Base number 7017. Related sizes with a different contact angle, arrangement, preload grade or tolerance class: 7017C (15°), 7017A5 (25°), face-to-face DF and tandem DT sets, P4 and P5 class pieces. MPN variants: 7017ADBC7P6-1/2PR; 7017-A-DB-C7-P6; 7017 A DB C7 P6; 7017ADBLP6; 7017ADB; 7017A.
One. The -1/2PR suffix marks a single half of a back-to-back pair.
30°, from the A in the designation.
ISO class 6, equivalent to ABEC 3.
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