Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71903 CD/P4A

S71903 CD/P4A

Dimensions

d		17	mm
D		30	mm
B		7	mm
d₁		20.9	mm
d₂		20.9	mm
D₂		27.8	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		6.7	mm

Abutment dimensions

d_a	min.	19	mm
d_a	max.	20.5	mm
d_b	min.	19	mm
d_b	max.	20.5	mm
D_a	max.	28	mm
D_b	max.	28.6	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	4.16	kN
Basic static load rating	C₀	2.08	kN
Fatigue load limit	P_u	0.088	kN
Attainable speed for grease lubrication		50000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	14
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	15	N
Static axial stiffness, preload class A		16	N/µm
Preload class B	G_B	30	N
Static axial stiffness, preload class B		22	N/µm
Preload class C	G_C	60	N
Static axial stiffness, preload class C		30	N/µm
Preload class D	G_D	120	N
Static axial stiffness, preload class D		43	N/µm
Calculation factors
Calculation factor	f	1.05
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

0.017

Model Number: S71903 CD/P4A
Inner Diameter：17mm Outer Diameter：30mm Width：7mm
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：2021-06-09
Application:Broadcasting System,thread processing machine,metering pump,vacuum suction cup,agrochemical,X-ray Equipment,wall materials,lifting chain,Pump,miscellaneous instruments,pipe fittings Steel industry
Similar models:71903 ACE/P4A S71903 ACD/HCP4A 71903 CE/HCP4AH 71903 CE/HCP4A 71903 ACE/HCP4AH 71903 ACD/HCP4A S71903 CD/P4A S71903 ACD/P4A 71903 ACD/P4A 71903 ACE/P4AH
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Hot number： 13427 41761 6301-2Z AOH 3084 G BT4-8023 AG/HA1VA902 BD-C 2215 KV-H 315 NF 307 ECP NKIS 45 NRT 460 A OKCX 540 PBMF 759040 M1G1 PCM 283230 E SIKAC 20 M SY 1.3/16 TF/VA201 SYR 2 1/2 N