Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71901 CD/P4A

71901 CD/P4A

Dimensions

d		12	mm
D		24	mm
B		6	mm
d₁		16	mm
d₂		16	mm
D₁		20	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		5.4	mm

Abutment dimensions

d_a	min.	14	mm
d_b	min.	14	mm
D_a	max.	22	mm
D_b	max.	22.6	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm
d_n		16.8	mm

Calculation data

Basic dynamic load rating	C	2.65	kN
Basic static load rating	C₀	1.25	kN
Fatigue load limit	P_u	0.053	kN
Attainable speed for grease lubrication		63000	r/min
Attainable speed for oil-air lubrication		95000	r/min
Ball diameter	D_w	3.175	mm
Number of balls	z	13
Reference grease quantity	G_ref	0.12	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	10	N
Static axial stiffness, preload class A		13	N/µm
Preload class B	G_B	20	N
Static axial stiffness, preload class B		17	N/µm
Preload class C	G_C	40	N
Static axial stiffness, preload class C		23	N/µm
Preload class D	G_D	80	N
Static axial stiffness, preload class D		33	N/µm
Calculation factors
Calculation factor	f	1.04
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.09
Calculation factor	f_2D	1.15
Calculation factor	f_HC	1
Calculation factor	f₀	9.8

Mass

Mass bearing

0.01

Model Number: 71901 CD/P4A
Inner Diameter：12mm Outer Diameter：24mm Width：6mm
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:construction machinery and equipment,pump,Plastic molding,wall industry,Insect Capture,animal,Special Equipment,Infrared Technology,Medical room equipment,intermediate,Optical detection
Similar models:S71901 CD/HCP4A 71901 CD/P4A 71901 CE/HCP4AH 71901 CD/HCP4A 71901 ACD/HCP4A 71901 ACE/HCP4AH S71901 ACD/HCP4A 71901 ACE/P4AH 71901 ACE/P4A 71901 CE/P4AH
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Model No.	Inner Diameter	Outer Diameter	Width	Type
17617	44.45	69.04	9.12	Seals
32330	82.55	98.45	9.53	Seals
8870	22.225	50.8	6.35	Seals
90x115x12 HMSA10 V	90	115	12	Seals
D/W RW1810 R	7.938	12.7	4.762	Bearings, units and housings
FY 2. TF/VA228	50.8	-	64.4	Bearings, units and housings
FYT 45 TF/VA228	45	-	54.2	Bearings, units and housings
MVR2-15	15	32	-	Seals
PWM 202430	20	24	30	Bearings, units and housings
SNP 3056x10	254	280	156.9974	Bearings, units and housings
SSAFS 22220 T	100	-	-	Bearings, units and housings
W 03	17.2466	33.7312	-	Bearings, units and housings

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Hot number： 13021 2216 EKTN9 29862 404153 407252 40x55x7 HMS5 RG 624-Z 62480 7021 CD/HCP4AL GEP 420 FS HK 1616 NJ 1880 MP SILA 50 TXE-2LS SNW 3124x4.3/16 W 619/3 R-2Z