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

71912 CB/P4A

Dimensions

d		60	mm
D		85	mm
B		13	mm
d₁		68.94	mm
d₂		67.73	mm
D₂		78.36	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		19.5	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		69.8	mm

Calculation data

Basic dynamic load rating	C	14	kN
Basic static load rating	C₀	14.6	kN
Fatigue load limit	P_u	0.375	kN
Attainable speed for grease lubrication		22000	r/min
Attainable speed for oil-air lubrication		32000	r/min
Ball diameter	D_w	5.556	mm
Number of balls	z	30
Reference grease quantity	G_ref	2.77	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	34	N
Static axial stiffness, preload class A		36	N/µm
Preload class B	G_B	68	N
Static axial stiffness, preload class B		48	N/µm
Preload class C	G_C	205	N
Static axial stiffness, preload class C		77	N/µm
Calculation factors
Calculation factor	f	1.11
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.07
Calculation factor	f_HC	1
Calculation factor	f₀	9.8

Mass

Mass bearing

0.2

Model Number: 71912 CB/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:Storage Device,chemical instruments,axle lathe,Storage Tool,Spectrum Products,pump accessories,air purification,tube,tapping machine,Technical Equipment,chuck industry
Similar models:71912 CB/HCP4A S71912 CE/P4A 71912 ACE/HCP4AL 71912 ACD/HCP4AL S71912 ACE/P4A 71912 ACE/HCP4A 71912 ACE/HCP4AH1 71912 ACE/P4AH1 S71912 ACB/HCP4A 71912 ACD/P4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71912CB/P4A products，there is large inventory of SKF 71912 CB/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 CB/P4A Which SKF 71912CB/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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Hot number： 19778 22411 23148 CC/W33 35x50x8 HMSA10 V 400124 600 VL R 7012 CE/P4AL1 C 39/1500 MB FYJ 75 TF N 38/630 MB NAO 80x110x30 NN 3048 K/SPW33 S7205 CD/P4A SAW 23524 TLC SIKB 20 F