Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71912 CD/P4A

71912 CD/P4A

Dimensions

d		60	mm
D		85	mm
B		13	mm
d₁		67.7	mm
d₂		67.7	mm
D₁		77.3	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		16.3	mm

Abutment dimensions

d_a	min.	64.6	mm
d_b	min.	64.6	mm
D_a	max.	80.4	mm
D_b	max.	83	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		69.7	mm

Calculation data

Basic dynamic load rating	C	19.9	kN
Basic static load rating	C₀	15.3	kN
Fatigue load limit	P_u	0.655	kN
Attainable speed for grease lubrication		15000	r/min
Attainable speed for oil-air lubrication		24000	r/min
Ball diameter	D_w	7.938	mm
Number of balls	z	24
Reference grease quantity	G_ref	2.7	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	70	N
Static axial stiffness, preload class A		50	N/µm
Preload class B	G_B	140	N
Static axial stiffness, preload class B		67	N/µm
Preload class C	G_C	280	N
Static axial stiffness, preload class C		92	N/µm
Preload class D	G_D	560	N
Static axial stiffness, preload class D		130	N/µm
Calculation factors
Calculation factor	f	1.17
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.09
Calculation factor	f_2D	1.15
Calculation factor	f_HC	1
Calculation factor	f₀	10.5

Mass

Mass bearing

0.19

Model Number: 71912 CD/P4A
Inner Diameter：60mm Outer Diameter：85mm Width：13mm
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:Industrial Electromechanical,Laser Devices,Vacuum generator,EEG,Animal Tracking,wheel lathe,other accessories,sleep monitoring,Textile Accessories,tooth filling,surgical instruments
Similar models:71912 ACD/HCP4A 71912 ACD/P4AL 71912 CE/HCP4A 71912 ACE/HCP4AH1 71912 CB/HCP4AL 71912 CD/HCP4A 71912 ACE/HCP4A S71912 CB/P4A 71912 CB/HCP4A 71912 CB/P4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71912CD/P4A products，there is large inventory of SKF 71912 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 71912 CD/P4A Which SKF 71912CD/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.

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AOH 3064 G	300	320	149	Bearings, units and housings
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OKC 500	500		-
OKCX 260	260		-
PFT 30 TR	30	-	-	Bearings, units and housings
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