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

S71920 CB/HCP4A

Dimensions

d		100	mm
D		140	mm
B		20	mm
d₁		114.92	mm
d₂		113.16	mm
D₂		128.7	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		28.9	mm

Abutment dimensions

d_a	min.	106	mm
d_a	max.	114.2	mm
d_b	min.	106	mm
d_b	max.	112.5	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	29.1	kN
Basic static load rating	C₀	36	kN
Fatigue load limit	P_u	0.865	kN
Attainable speed for grease lubrication		15000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	37
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	72	N
Static axial stiffness, preload class A		67	N/µm
Preload class B	G_B	145	N
Static axial stiffness, preload class B		88	N/µm
Preload class C	G_C	430	N
Static axial stiffness, preload class C		139	N/µm
Calculation factors
Calculation factor	f	1.11
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.03
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1.01
Calculation factor	f₀	10

Mass

Mass bearing

0.83

Model Number: S71920 CB/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：2025-12-02
Application:Machine tool accessories,plant determination,circulating pump,Medium and large motor,motor,industrial fans,Industrial Adhesive,Reflective Materials Industrial fabrics,medical equipment,wall industry,chromatography
Similar models:S71920 CB/HCP4A 71920 CD/P4AL PCM 171920 E S71920 ACE/HCP4A S71920 CE/HCP4A 71920 ACB/P4A 71920 CD/HCP4AL 71920 ACB/P4AL 71920 CD/P4A 71920 CD/HCP4A
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Model No.	Inner Diameter	Outer Diameter	Width	Type
1763320	447.675	488.95	17.48	Seals
18922	47.625	82.52	12.29	Seals
31269	79.375	114.33	11.13	Seals
37533	95.25	126.97	11.13	Seals
6020-Z	100	150	24	Bearings, units and housings
7009 CE/HCP4AL	45	75	16	Bearings, units and housings
71919 ACD/P4A	95	130	18	Bearings, units and housings
AOHX 30/710	670	710	286	Bearings, units and housings
K 160x170x46	160	170	46	Bearings, units and housings
LL 687949/910	977.9	1130.3	66.675	Bearings, units and housings
NUP 208 ECM	40	80	18	Bearings, units and housings
SAF 22244 TLC	220	-	-	Bearings, units and housings

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Hot number： 32915 35x52x10 HMSA10 V 61828 6316/HC5C3 7017 CB/HCP4A 86716 91382 NUP 2210 ECNP PF 30 TR PRM 859040 RN-2.5x11.8 BF/G2 SAF 1507 x 1.1/4 T SAF 1616 x 2.3/4 T STO 45 X W 605 R-2RS1