Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71912 CB/HCP4A

71912 CB/HCP4A

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		26000	r/min
Attainable speed for oil-air lubrication		40000	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		40	N/µm
Preload class B	G_B	68	N
Static axial stiffness, preload class B		53	N/µm
Preload class C	G_C	205	N
Static axial stiffness, preload class C		85	N/µm
Calculation factors
Calculation factor	f	1.11
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.03
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1.01
Calculation factor	f₀	9.8

Mass

Mass bearing

0.18

Model Number: 71912 CB/HCP4A
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,lifting chain,test equipment,teaching equipment,Insect Capture,Antenna Potentials,metering pump,Plastic Equipment,tapping machine,Vertical machining,surgical instruments
Similar models:S71912 CE/P4A 71912 CD/P4A 71912 CB/P4AL 71912 ACE/HCP4A 71912 ACD/HCP4A 71912 ACD/P4AL S71912 CB/P4A S71912 ACB/HCP4A 71912 ACB/P4AL 71912 CB/HCP4AL
BEARING POWER International Trading Co.,Ltd. specialize in 71912CB/HCP4A products，there is large inventory of SKF 71912 CB/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 71912 CB/HCP4A Which SKF 71912CB/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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
18652	47.625	69.85	7.95	Seals
19880	50.8	73.03	6.35	Seals
23046	58.7502	77.75	7.95	Seals
28x44x6 HMS5 V	28	44	6	Seals
6214-Z	70	125	24	Bearings, units and housings
71905 CD/P4A	25	42	9	Bearings, units and housings
71907 CB/HCP4A	35	55	10	Bearings, units and housings
71918 ACB/P4AL	90	125	18	Bearings, units and housings
BT2B 331837	384.175	546.1	-	Bearings, units and housings
PRM 808580	80	85	80	Bearings, units and housings
SAF 22528 x 4.13/16 TLC	122.2375	-	-	Bearings, units and housings
W 11	55.4228	78.9686	-	Bearings, units and housings

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Hot number： 405203 40x62x10 HMS5 V 591/560 F 7016 ACB/P4A 7018 ACD/HCP4AH1 90867 BC4B 320989/HA3 FSAF 1617 x 2.7/8 FYTWK 1.1/4 AYTA FYTWK 507 Y HME 31/500 JM 738249/210 NAO 30x47x18 SAF 23026 KAT x 4.7/16 SY 1.15/16 WF