7308BECBM SKF Single Row Angular Contact Bearing 40x90x23mm

These single row angular contact ball bearings can accommodate radial and axial loads acting simultaneously, where the axial load acts in one direction only. They can operate at high speeds and, depending on the variant, even very high speeds. They are more suitable than deep groove ball bearings for supporting large axial forces acting in one direction.

High-speed capability
Accommodate relatively high radial loads and large unilateral axial loads

Dimensions
d 40 mm Bore diameter
D 90 mm Outside diameter
B 23 mm Width
d1 59.7 mm Shoulder diameter of inner ring (large side face)
d2 49.55 mm Shoulder diameter of inner ring (small side face)
D1 71.6 mm Shoulder diameter of outer ring (large side face)
a 39 mm Distance side face to pressure point
r1,2 min.1.5 mm Chamfer dimension
r3,4 min.1 mm Chamfer dimension

Abutment dimensions
da min.49 mm Diameter of shaft abutment
Da max.81 mm Abutment diameter housing
Db max.84.4 mm Diameter of housing abutment
ra max.1.5 mm Radius of fillet
rb max.1 mm Radius of fillet

Calculation data
Basic dynamic load rating C 50 kN
Basic static load rating C0 32.5 kN
Fatigue load limit Pu 1.37 kN
Reference speed 9 500 r/min
Limiting speed 12 000 r/min
Minimum axial load factor A 0.0173
Minimum radial load factor kr 0.1
Limiting value e 1.14

SINGLE BEARING OR BEARING PAIR ARRANGED IN TANDEM
Calculation factor (single, tandem) X 0.35
Calculation factor (single, tandem) Y0 0.26
Calculation factor (single, tandem) Y2 0.57

BEARING PAIR ARRANGED BACK-TO-BACK OR FACE-TO-FACE
Calculation factor (back-to-back, face-to-face) X 0.57
Calculation factor (back-to-back, face-to-face) Y0 0.52
Calculation factor (back-to-back, face-to-face) Y1 0.55
Calculation factor (back-to-back, face-to-face) Y2 0.93

Mass
Mass 0.68 kg

Properties
Contact type Normal contact (two-point contact)
Number of rows 1
Locating feature, bearing outer ring None
Ring type One-piece inner and outer rings
Cage Machined brass
Matched arrangement No
Universal matching bearing Yes
Axial internal clearance Not applicable
Matched condition (axial clearance/ preload) Axial clearance CB
Material, bearing Bearing steel
Coating Without
Sealing Without
Lubricant None