Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71924 ACB/P4A

71924 ACB/P4A

Dimensions

d		120	mm
D		165	mm
B		22	mm
d₁		136.92	mm
d₂		135	mm
D₂		151.9	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		49.2	mm

Abutment dimensions

d_a	min.	126	mm
d_b	min.	126	mm
D_a	max.	159	mm
D_b	max.	161.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		138.2	mm

Calculation data

Basic dynamic load rating	C	33.8	kN
Basic static load rating	C₀	45	kN
Fatigue load limit	P_u	1.02	kN
Attainable speed for grease lubrication		9000	r/min
Attainable speed for oil-air lubrication		14000	r/min
Ball diameter	D_w	8.731	mm
Number of balls	z	41
Reference grease quantity	G_ref	14.01	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	155	N
Static axial stiffness, preload class A		188	N/µm
Preload class B	G_B	310	N
Static axial stiffness, preload class B		243	N/µm
Preload class C	G_C	930	N
Static axial stiffness, preload class C		366	N/µm
Calculation factors
Calculation factor	f	1.13
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.07
Calculation factor	f_HC	1
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

1.27

Model Number: 71924 ACB/P4A
Inner Diameter：120mm Outer Diameter：165mm Width：22mm
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：2026-06-25
Application:Small air generators,Industrial equipment,coupling type,glass,Spectrum Products,expectoration machine,Automobile,switch,ventilation fans,instrument,economic mold
Similar models:S71924 CD/P4A 71924 ACE/HCP4A 71924 ACD/P4A 71924 CE/HCP4A S71924 CD/HCP4A 71924 CB/P4A S71924 ACD/HCP4A S71924 CE/HCP4A 71924 ACB/P4A 71924 CB/HCP4AL
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Model No. Inner Diameter Outer Diameter Width Type

240/600 BC
400254
618/670 TN
NU 2214 ECML
SAFS 23056 KATLC x 10

Purchase the SKF 71924 ACB/P4A Please fill in the following

Hot number： 1475374 1650 VL V 56x72x8 HMSA10 RG 7011 ACE/P4AL 71818 ACD/P4 71910 CE/HCP4A 7320 BEM BEAS 020052-2RS BT4B 332963 B/HA1 D/W R8 R-2RZ FY 35 TF/VA228 G 25x33x4 NUTR 1542 A PCM 8085100 E SNL 3276

Model No.	Inner Diameter	Outer Diameter	Width	Type
240/600 BC
400254
618/670 TN
NU 2214 ECML
SAFS 23056 KATLC x 10