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

S71920 ACE/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		39.2	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	36.4	kN
Basic static load rating	C₀	30	kN
Fatigue load limit	P_u	1.14	kN
Attainable speed for grease lubrication		13700	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	332	N
Static axial stiffness, preload class A		207	N/µm
Preload class B	G_B	996	N
Static axial stiffness, preload class B		311	N/µm
Preload class C	G_C	1990	N
Static axial stiffness, preload class C		408	N/µm
Calculation factors
Calculation factor	f	1.18
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1.01
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

0.66

Model Number: S71920 ACE/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:medical equipment,intermediate,sample cup,sterilizers,economic mold,hydraulic pressure gauge,Animal Tracking,generator,joint protection,suction nozzle,food packaging
Similar models:S71920 ACE/P4A 71920 ACE/P4AH1 71920 CD/P4AH1 71920 CB/P4A 71920 ACB/HCP4AL 71920 CD/HCP4A S71920 CD/P4A 71920 ACD/HCP4AH1 71920 CD/HCP4AL 71920 CD/HCP4AH1
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10598	27	41.25	6.35	Seals
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40x62x6 HMSA10 V	40	62	6	Seals
811/750 M	750	900	120	Bearings, units and housings
82x160x15 HMS5 RG	82	160	15	Seals
BSA 305 C	25	62	17	Bearings, units and housings
NNCL 4830 CV	150	190	40	Bearings, units and housings
NU 20/630 ECMA	630	920	170	Bearings, units and housings
PCM 606540 E	60	65	40	Bearings, units and housings
SAF 22530 x 5.1/8	130.175	-	-	Bearings, units and housings
SYK 40 LD	40	-	-	Bearings, units and housings

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Hot number： 23148-2CS5K/VT143 3306 A-2ZTN9/MT33 50x72x8 CRW1 R 55x70x8 HMS5 RG 618/6 660 VE R 750 VA R BK 1015 C 3088 KMB GEZ 212 ES-2LS HK 3038 NU 234 ECML S71917 ACD/HCP4A SNW 126x4.3/8 WS 81126