Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7021 ACD/P4AH1

7021 ACD/P4AH1

Dimensions

d		105	mm
D		160	mm
B		26	mm
d₁		121.9	mm
d₂		121.9	mm
D₁		143.1	mm
K		0.5	mm
C₁		6.92	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/P4AH1
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：2026-04-16
Application:Machine tools,test strip,relay,spreader series,axle lathe,other processing,storage and transportation equipment,historical instruments,printing machinery,key lock,food safety
Similar models:7021 CD/HCP4AH1 7021 CD/P4AH1 S7021 CD/HCP4A 7021 CD/P4AL 7021 ACD/P4A S7021 ACD/HCP4A 7021 ACD/HCP4A S7021 CD/P4A 7021 ACD/P4AL 7021 CD/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 7021ACD/P4AH1 products，there is large inventory of SKF 7021 ACD/P4AH1 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/P4AH1 Which SKF 7021ACD/P4AH1 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
26x38x7 HMS5 RG	26	38	7	Seals
32211	55	100	26.75	Bearings, units and housings
4943	12.7	25.07	6.35	Seals
7010 ACE/HCP4A	50	80	16	Bearings, units and housings
75x90x8 CRW1 R	75	90	8	Seals
81284 M	420	580	130	Bearings, units and housings
EE 526130/526190	330.2	482.6	85.725	Bearings, units and housings
BT4-0016 G/HA1C445VA901	304.902	412.648	-	Bearings, units and housings
H 3130	135	150	111	Bearings, units and housings
PRMF 404440	40	44	40	Bearings, units and housings
S7024 ACD/HCP4A	120	180	28	Bearings, units and housings
YAR 206-103-2RF/HV	30.162	62	38.1	Bearings, units and housings

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Hot number： 16735 BD-230/950 CAK/W33-OH 30/950 H 39045 71915 ACB/HCP4AL 7226 ACD/P4A 85839 C 4032 V FYJ 520 NA 2201.2RSX NA 4902.2RS NK 29/30 NU 315 ECM NUP 307 ECJ SAKAC 12 M W 630/1.5 R-2Z