SKF 71988ACMB Angular contact ball bearing

SKF 71988ACMB angular contact ball bearing. Single-row angular contact ball bearing configured to take combined radial and one-direction axial load. Contact angle 15°, 25°, 30° or 40° per suffix (BE / BEP / BECBP execution). Two bearings are commonly mounted in an opposing pair (back-to-back, face-to-face or tandem) so the pair carries axial load in both directions and takes moment load. Manufactured to ISO 492 Class Normal. Bore diameter d = 440 mm per ISO 15.

Type

Angular contact ball bearing

Designation

SKF 71988ACMB

Standard

ISO 15 / DIN 623 dimension plan; ISO 492 Class Normal precision

HS code

8482.10

Bore diameter

440 mm

Outside diameter

600 mm

Width

74 mm

Contact angle

25 °

Basic dynamic load rating

507 kN

Basic static load rating

1040 kN

Reference speed

1100 r/min

Limiting speed

1100 r/min

Contact type

Normal contact (two-point contact)

Number of rows

1

Locating feature, bearing outer ring

Without

Ring type

One-piece inner and outer rings

Cage

Machined brass

Matched arrangement

No

Axial internal clearance

Not applicable

Tolerance class

Normal

Material, bearing

Bearing steel

Coating

Without

Sealing

Without

Lubricant

None

Relubrication feature

Without

Indicative carbon footprint for new product

226 kg CO2e

Product net weight

61 kg

Standard

ISO 15 / ISO 492 / DIN 623

Material

Bearing steel — 100Cr6 (through-hardened) or SNR-nitrided; cage as declared by suffix

Temperature Range

-30 to +120 °C standard grease

HS Code

8482.10

• Timken 71988
• NSK 71988
• NTN 71988
• FAG 71988
• Koyo 71988
• Equivalent: 71988 (Timken)
• Equivalent: 71988 (NSK)
• Equivalent: 71988 (NTN)
• Equivalent: 71988 (FAG)
• Equivalent: 71988 (Koyo)