Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71918 CB/P4A

S71918 CB/P4A

Dimensions

d		90	mm
D		125	mm
B		18	mm
d₁		103	mm
d₂		101.4	mm
D₂		115	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		27.5	mm

Abutment dimensions

d_a	min.	96	mm
d_a	max.	102.3	mm
d_b	min.	96	mm
d_b	max.	100.7	mm
D_a	max.	119	mm
D_b	max.	121.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	23.8	kN
Basic static load rating	C₀	28.5	kN
Fatigue load limit	P_u	0.72	kN
Attainable speed for grease lubrication		14000	r/min
Ball diameter	D_w	7.144	mm
Number of balls	z	36
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	59	N
Static axial stiffness, preload class A		53	N/µm
Preload class B	G_B	120	N
Static axial stiffness, preload class B		70	N/µm
Preload class C	G_C	355	N
Static axial stiffness, preload class C		112	N/µm
Calculation factors
Calculation factor	f	1.12
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.07
Calculation factor	f_HC	1
Calculation factor	f₀	10

Mass

Mass bearing

0.61

Model Number: S71918 CB/P4A
Inner Diameter：90mm Outer Diameter：125mm Width：18mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Angular contact ball bearings Angular contact ball bearings, super-precision
Details： Angular contact ball bearings, super-precision
Update date：2025-12-09
Application:Dental Equipment,vertical sawing machine,Oral Image,non-ferrous metal alloy,hardware,hook,hydraulic control element,Storage Tool,Gripper Swing,wall industry,small appliances
Similar models:S71918 ACB/HCP4A 71918 CD/P4AL S71918 CE/P4A 71918 ACB/P4AL 71918 CB/HCP4A 71918 ACB/P4A 71918 CD/P4A 71918 ACE/HCP4AL 71918 ACB/HCP4A 71918 ACE/P4AL
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Hot number： 13918 2202 E-2RS1TN9 33114 51220 618/9 FSAF 22520 TLC FY 1.3/16 TF/VA201 FY 7/8 TF FYR 4-3 N 04 NK 90/35 NN 3040 K/SPW33 NU 319 ECML SAW 23532 T YAT 206-104