Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7021 ACD/P4AL

7021 ACD/P4AL

Dimensions

d		105	mm
D		160	mm
B		26	mm
d₁		121.9	mm
d₂		121.9	mm
D₁		143.1	mm
b		2.4	mm
C₁		14.1	mm
C₂		6.2	mm
C₃		5	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		44	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	90.4	kN
Basic static load rating	C₀	93	kN
Fatigue load limit	P_u	3.4	kN
Attainable speed for grease lubrication		7500	r/min
Attainable speed for oil-air lubrication		12000	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	560	N
Static axial stiffness, preload class A		279	N/µm
Preload class B	G_B	1120	N
Static axial stiffness, preload class B		365	N/µm
Preload class C	G_C	2240	N
Static axial stiffness, preload class C		484	N/µm
Preload class D	G_D	4480	N
Static axial stiffness, preload class D		655	N/µm
Calculation factors
Calculation factor	f	1.15
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.05
Calculation factor	f_2D	1.08
Calculation factor	f_HC	1
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

1.59

Model Number: 7021 ACD/P4AL
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：2025-12-09
Application:stamping die and its equipment,Water Monitoring,diving equipment,sewage pump,crimping tools,Industry,Material handling equipment,flow control valve,Individual Wire,Pest Monitoring,floor industry
Similar models:7021 ACD/HCP4AH1 7021 CD/P4AH1 7021 CD/HCP4AH1 7021 ACD/P4A 7021 CD/HCP4AL 7021 ACD/P4AH1 7021 ACD/P4AL S7021 ACD/HCP4A 7021 ACD/HCP4AL S7021 CD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 7021ACD/P4AL products，there is large inventory of SKF 7021 ACD/P4AL 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 ACD/P4AL Which SKF 7021ACD/P4AL 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.

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400400	36	-	-	Seals
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6310/HC5C3	50	110	27	Bearings, units and housings
6314-2RS1	70	150	35	Bearings, units and housings
71920 ACE/HCP4AL	100	140	20	Bearings, units and housings
85039	-	-	50.8	Seals
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IR 17x21x20	17	21	20	Bearings, units and housings
NJ 422 M	110	280	65	Bearings, units and housings
PBMF 150170100 M1G1	150	170	100	Bearings, units and housings
PWM 657580	65	75	80	Bearings, units and housings

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Hot number： 400380 400605 49985 6021-Z 71960 ACDMA/P4A 900 VE R BGSB 358235 FNL 508 A NJ 314 ECJ NUP 221 ECP NNU 49/670 BK/SPW33X OH 39/670 H S71921 CD/P4A SYNT 100 FW W 638/2.5-2Z