SKF 7028ACD/P4ADGC Super-precision angular contact ball bearing

SKF 7028ACD/P4ADGC super-precision angular contact ball bearing. Super-precision (ISO 492 P4A / P2A) single-row angular contact ball bearing for machine-tool spindles, high-speed pump rotors, precision index tables. Contact angle 15° (E / 7000C) or 25° (7000A / ACD). Standard cage TN9 (nylon) or T (fabric-reinforced phenolic) for the highest speed ratings. Universally-matched sets available for back-to-back, face-to-face or tandem pair mounting.

Type

Super-precision angular contact ball bearing

Designation

SKF 7028ACD/P4ADGC

Bore d

140 mm

HS code

8482.10

Bore diameter

140 mm

Outside diameter

210 mm

Width

66 mm

Contact angle

25 °

Basic dynamic load rating

234 kN

Basic static load rating

315 kN

Note

Refer to catalogue data or contact SKF for the attainable speeds

Contact type

Normal contact (two-point contact)

Number of rows

2

Ring type

One-piece inner and outer rings

Design

High-capacity D

Universal matching bearing

Yes, back-to-back (<>), face-to-face (>>)

Matched arrangement

Universal matching

Number of bearings in matched set

2

Matched condition (axial clearance/ preload)

Moderate preload

Tolerance class

P4A

Material, bearing

Bearing steel

Coating

Without

Sealing

Without

Lubricant

None

Indicative carbon footprint for new product

24.8 kg CO2e

Product net weight

6.71 kg

eClass code

23-05-08-04

UNSPSC code

31171531

Standard

SKF designation convention (see description for governing ISO / DIN)

Material

As declared by SKF designation suffix

Temperature Range

Per SKF product data

HS Code

8482.10

• FAG 70284
• NSK 70284
• GMN 70284
• Timken 70284
• Koyo 70284
• Equivalent: 70284 (FAG)
• Equivalent: 70284 (NSK)
• Equivalent: 70284 (GMN)
• Equivalent: 70284 (Timken)
• Equivalent: 70284 (Koyo)