7311BECBP BEARING

Single row angular contact ball bearing

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.

Technical Parameters

Description

Dimensions

d	55 mm	Bore diameter
D	120 mm	Outside diameter
B	29 mm	Width
d1	≈80.3 mm	Shoulder diameter of inner ring (large side face)
d2	≈66.66 mm	Shoulder diameter of inner ring (small side face)
D1	≈96.6 mm	Shoulder diameter of outer ring (large side face)
a	51 mm	Distance side face to pressure point
r1,2	min.2 mm	Chamfer dimension
r3,4	min.1 mm	Chamfer dimension

Abutment dimensions

da	min.66 mm	Diameter of shaft abutment
Da	max.109 mm	Abutment diameter housing
Db	max.114 mm	Diameter of housing abutment
ra	max.2 mm	Radius of fillet
rb	max.1 mm	Radius of fillet

Calculation data

SKF performance class		SKF Explorer
Basic dynamic load rating	C	85 kN
Basic static load rating	C0	60 kN
Fatigue load limit	Pu	2.55 kN
Reference speed		7 000 r/min
Limiting speed		7 000 r/min
Minimum axial load factor	A	0.0574
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