Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7021 CD/P4A

7021 CD/P4A

Dimensions

d		105	mm
D		160	mm
B		26	mm
d₁		121.9	mm
d₂		121.9	mm
D₁		143.1	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		30.8	mm

Abutment dimensions

d_a	min.	114	mm
d_b	min.	114	mm
D_a	max.	151	mm
D_b	max.	155	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		125.6	mm

Calculation data

Basic dynamic load rating	C	95.6	kN
Basic static load rating	C₀	96.5	kN
Fatigue load limit	P_u	3.6	kN
Attainable speed for grease lubrication		8000	r/min
Attainable speed for oil-air lubrication		13000	r/min
Ball diameter	D_w	17.462	mm
Number of balls	z	21
Reference grease quantity	G_ref	20.4	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	360	N
Static axial stiffness, preload class A		117	N/µm
Preload class B	G_B	720	N
Static axial stiffness, preload class B		159	N/µm
Preload class C	G_C	1440	N
Static axial stiffness, preload class C		223	N/µm
Preload class D	G_D	2880	N
Static axial stiffness, preload class D		324	N/µm
Calculation factors
Calculation factor	f	1.15
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
Calculation factor	f₀	15.7

Mass

Mass bearing

1.59

Model Number: 7021 CD/P4A
Inner Diameter：105mm Outer Diameter：160mm Width：26mm
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:instrument,light therapy instrument,Control,Forming mold,Cylinder Micro,other processing,Handling machinery and various industrial machinery,Storage Tool,thread processing machine,bag machine,steam Hydraulic control element
Similar models:S7021 CD/HCP4A 7021 ACD/P4AL S7021 ACD/HCP4A 7021 CD/P4A 7021 ACD/P4A 7021 CD/HCP4A S7021 CD/P4A 7021 ACD/P4AH1 7021 CD/P4AH1 7021 ACD/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 7021CD/P4A products，there is large inventory of SKF 7021 CD/P4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 7021 CD/P4A Which SKF 7021CD/P4A is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

Model No.	Inner Diameter	Outer Diameter	Width	Type
16903	42.8752	69.85	9.53	Seals
22x35x7 HMS5 RG	22	35	7	Seals
6318-Z	90	190	43	Bearings, units and housings
7326 BM	130	280	58	Bearings, units and housings
7012 CD/HCP4AL	60	95	18	Bearings, units and housings
H 222	100	145	63	Bearings, units and housings
NA 6915	75	105	54	Bearings, units and housings
SAF 22330 TLC	150	-	-	Bearings, units and housings
SIL 20 C	20	-	16	Bearings, units and housings
SY 1.3/16 TF	30.163	-	-	Bearings, units and housings
YAR 212-2RF	60	110	65.1	Bearings, units and housings
Z 203 F	17	-	4	Seals

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Hot number： 22248 CC/W33 BD-23122 CCK/W33-H 3122 23134-2CS5K/VT143 330x390x25 HDS1 R 65x100x8 CRW1 R D/W R156 R-2ZS MS 30/560 NU 1014 ECP NU 260 M OKBS 70 PFT 1.1/4 TR S7202 CD/P4A SAF 22626 x 4.3/8 T SAFS 23048 KAT x 9 SSAFS 22544