Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S7004 CD/HCP4A

S7004 CD/HCP4A

Dimensions

d		20	mm
D		42	mm
B		12	mm
d₁		27.1	mm
d₂		27.1	mm
D₂		37	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		10.2	mm

Abutment dimensions

d_a	min.	23.2	mm
d_a	max.	26.6	mm
d_b	min.	23.2	mm
d_b	max.	26.6	mm
D_a	max.	38.8	mm
D_b	max.	40	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	8.71	kN
Basic static load rating	C₀	4.3	kN
Fatigue load limit	P_u	0.18	kN
Attainable speed for grease lubrication		50000	r/min
Ball diameter	D_w	6.35	mm
Number of balls	z	12
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	35	N
Static axial stiffness, preload class A		25	N/µm
Preload class B	G_B	70	N
Static axial stiffness, preload class B		34	N/µm
Preload class C	G_C	140	N
Static axial stiffness, preload class C		46	N/µm
Preload class D	G_D	280	N
Static axial stiffness, preload class D		65	N/µm
Calculation factors
Calculation factor	f	1.03
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.05
Calculation factor	f_2D	1.09
Calculation factor	f_HC	1.02
Calculation factor	f₀	9.2

Mass

Mass bearing

0.06

Model Number: S7004 CD/HCP4A
Inner Diameter：20mm Outer Diameter：42mm Width：12mm
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:rolling mill roll neck and slowdown device,ECG,storage shelves,raw material accessories,agriculture,electromagnet,Handling machinery and various industrial machinery,Hydraulic Press,Tool,plant determination,switch
Similar models:7004 ACE/P4AH1 7004 ACD/P4A S7004 ACD/HCP4A S7004 CD/HCP4A 7004 CE/P4AH1 S7004 ACE/P4A 7004 ACD/HCP4A S7004 CE/P4A S7004 CE/HCP4A 7004 ACE/P4AL
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Model No.	Inner Diameter	Outer Diameter	Width	Type
15886	40	75	12	Seals
32x42x7 HMS5 V	32	42	7	Seals
40x62x10 HMS5 RG	40	62	10	Seals
40x80x12 HMS5 V	40	80	12	Seals
7203 ACD/P4A	17	40	12	Bearings, units and housings
IR 20X25X16 IS1	20	25	16	Bearings, units and housings
NU 209 ECM	45	85	19	Bearings, units and housings
PCMW 142601.5 E	14	26	-	Bearings, units and housings
S7004 CE/P4A	20	42	12	Bearings, units and housings
W 638/2.5-2Z	2.5	6	2.6	Bearings, units and housings
W 638/4-2Z	4	9	4	Bearings, units and housings
Z 215	75	-	7	Seals

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Hot number： 1900250 22x32x7 CRW1 R 239/560 CA/W33 25713 312844/VJ202 35096 408503 6004/VA201 6215-2Z/VA208 727 ACD/HCP4A EE 168400/168500 C 3172 KM NJ 336 ECM NU 216 ECML RNAO 20x28x26