Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71920 CE/HCP4A

S71920 CE/HCP4A

Dimensions

d		100	mm
D		140	mm
B		20	mm
d₁		112.4	mm
d₂		109	mm
D₂		130.9	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		26.7	mm

Abutment dimensions

d_a	min.	106	mm
d_a	max.	111.8	mm
d_b	min.	103.2	mm
d_b	max.	108.4	mm
D_a	max.	134	mm
D_b	max.	136.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	39	kN
Basic static load rating	C₀	31.5	kN
Fatigue load limit	P_u	1.2	kN
Attainable speed for grease lubrication		15500	r/min
Ball diameter	D_w	12.7	mm
Number of balls	z	24
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	208	N
Static axial stiffness, preload class A		81	N/µm
Preload class B	G_B	624	N
Static axial stiffness, preload class B		129	N/µm
Preload class C	G_C	1250	N
Static axial stiffness, preload class C		178	N/µm
Calculation factors
Calculation factor	f	1.18
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.05
Calculation factor	f_2C	1.09
Calculation factor	f_HC	1.01
Calculation factor	f₀	8.5

Mass

Mass bearing

0.66

Model Number: S71920 CE/HCP4A
Inner Diameter：100mm Outer Diameter：140mm Width：20mm
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：2026-04-16
Application:gas turbine,Spectral Products,chemical raw materials and reagents,tube,ignition system,Rolling mill gear box,Textile Industry Accessories and Accessories,marine test,rubber products machinery and equipment,orthodontic material,generator
Similar models:71920 CD/P4AL 71920 ACB/P4AL 71920 ACE/HCP4AH1 71920 ACE/P4AL 71920 CB/HCP4AL 71920 ACD/P4AL 71920 ACD/HCP4A S71920 CE/HCP4A 71920 CE/HCP4A 71920 ACE/HCP4AL
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19300	49.2252	73.03	7.95	Seals
19579	50.0126	67.488	13.487	Seals
21309 EK	45	100	25	Bearings, units and housings
21759	55.5752	76.2	9.53	Seals
24080 ECCJ/W33	400	600	200	Bearings, units and housings
524909	1101.725	-	-	Seals
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71948 CD/P4A	240	320	38	Bearings, units and housings
99306	78	88.0872	22.225	Seals
OKBS 106	106	-	-
PCM 222515 E	22	25	15	Bearings, units and housings
W 63802-2Z	15	24	7	Bearings, units and housings

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