Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7212 ACD/HCP4A

7212 ACD/HCP4A

Dimensions

d		60	mm
D		110	mm
B		22	mm
d₁		76.4	mm
d₂		76.4	mm
D₁		93.6	mm
r_1,2	min.	1.5	mm
r_3,4	min.	0.6	mm
a		30.9	mm

Abutment dimensions

d_a	min.	69	mm
d_b	min.	69	mm
D_a	max.	101	mm
D_b	max.	105.8	mm
r_a	max.	1.5	mm
r_b	max.	0.6	mm
d_n		80.1	mm

Calculation data

Basic dynamic load rating	C	55.3	kN
Basic static load rating	C₀	45	kN
Fatigue load limit	P_u	1.9	kN
Attainable speed for grease lubrication		14000	r/min
Attainable speed for oil-air lubrication		22000	r/min
Ball diameter	D_w	14.288	mm
Number of balls	z	16
Reference grease quantity	G_ref	10.08	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	350	N
Static axial stiffness, preload class A		202	N/µm
Preload class B	G_B	700	N
Static axial stiffness, preload class B		264	N/µm
Preload class C	G_C	1400	N
Static axial stiffness, preload class C		349	N/µm
Preload class D	G_D	2800	N
Static axial stiffness, preload class D		470	N/µm
Calculation factors
Calculation factor	f	1.07
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.01
Calculation factor	f_2C	1.03
Calculation factor	f_2D	1.06
Calculation factor	f_HC	1.01
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

0.69

Model Number: 7212 ACD/HCP4A
Inner Diameter：60mm Outer Diameter：110mm Width：22mm
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：2025-11-27
Application:milling head plug,coupling type,lifting tackle,packing equipment,hydraulic pump,inorganic chemical,marine analysis and testing equipment,metering pump,Spectral Products,sterilizers,air conditioning tools
Similar models:7212 ACD/HCP4A 7212 CD/HCP4A S7212 ACD/P4A 7212 ACCBM 7212 BEGAM 7212 BECBP 7212 BEP 7212 BECBM 7212 ACD/P4A S7212 CD/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 7212ACD/HCP4A products，there is large inventory of SKF 7212 ACD/HCP4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 7212 ACD/HCP4A Which SKF 7212ACD/HCP4A 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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