Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71904 CD/P4A

S71904 CD/P4A

Dimensions

d		20	mm
D		37	mm
B		9	mm
d₁		25.6	mm
d₂		25.6	mm
D₂		34.15	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		8.4	mm

Abutment dimensions

d_a	min.	22	mm
d_a	max.	25.1	mm
d_b	min.	22	mm
d_b	max.	25.1	mm
D_a	max.	35	mm
D_b	max.	35.6	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm

Calculation data

Basic dynamic load rating	C	6.05	kN
Basic static load rating	C₀	3.2	kN
Fatigue load limit	P_u	0.137	kN
Attainable speed for grease lubrication		43000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	15
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	25	N
Static axial stiffness, preload class A		22	N/µm
Preload class B	G_B	50	N
Static axial stiffness, preload class B		29	N/µm
Preload class C	G_C	100	N
Static axial stiffness, preload class C		40	N/µm
Preload class D	G_D	200	N
Static axial stiffness, preload class D		56	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

0.037

Model Number: S71904 CD/P4A
Inner Diameter：20mm Outer Diameter：37mm Width：9mm
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：2024-12-13
Application:Pneumatic Actuator,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,Control,Machine tools,stirrer,inorganic chemical,special broaching machine,ignition system,DC generators,shaft milling machine,rubber products machinery and equipment
Similar models:S71904 ACD/HCP4A 71904 ACE/HCP4A S71904 ACE/HCP4A 71904 CD/P4A S71904 CD/P4A S71904 CE/P4A 71904 ACE/HCP4AL 71904 CE/P4A 71904 ACD/P4A 71904 ACE/P4AH
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Model No.	Inner Diameter	Outer Diameter	Width	Type
19992	50.8	76.2	7.95	Seals
23060-2CS5/VT143		460	118	Bearings, units and housings
249/800 CA/W33	800	1060	258	Bearings, units and housings
26141	66.675	85.7	11.13	Seals
32501	82.55	114.33	11.13	Seals
470351	343	-	-	Seals
708 CE/P4AH	8	22	7	Bearings, units and housings
BEAS 017047-2RS	17	47	25	Bearings, units and housings
DMB 4/5	40	-	36	Bearings, units and housings
FY 55 FM	55	-	-	Bearings, units and housings
NJ 2308 ECP	40	90	33	Bearings, units and housings
OKBS 56	56	-	-

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Hot number： 22x31x7 CRW1 P 23230 CCK/W33 6026 M 68450/68712 7009 ACE/HCP4A 71919 CB/P4A FYTB 1.7/16 TF NNCL 4912 CV NU 211 ECM/C3VL0241 PSM 142012 A51 SAF 22617 x 2.13/16 TLC SAKB 12 F W 61803-2Z W 61804-2RZ XHCE 040/OK 100