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：2024-12-13
Application:metallurgy,printing equipment,decoration machinery,Industry,expectoration machine,electric hydraulic lifting platform,luminescent reagent,,Animal Tracking,shoe-making machinery,ventilator anesthesia machine etc
Similar models:71912 CE/HCP4A S71912 CE/P4A S71912 CB/P4A S71912 ACB/HCP4A 71912 CD/HCP4A 71912 ACB/P4A 71912 ACB/HCP4AL S71912 ACE/HCP4A 71912 ACD/HCP4A 71912 ACE/P4AH1
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Model No.	Inner Diameter	Outer Diameter	Width	Type
10x30x7 HMSA10 V	10	30	7	Seals
320x380x30 HDS1 R	320	380	30	Seals
400081	7	-	-	Seals
6007/HR22T2	35	62	14	Bearings, units and housings
7220 BECBM	100	180	34	Bearings, units and housings
99058	16	18.2372	11.1252	Seals
KMTA 26	32	-	130	Bearings, units and housings
N 530	68.6562	-	530.0218	Bearings, units and housings
NU 19/850 ECMA/HA1	850	1120	118	Bearings, units and housings
PCZ 2228 M	34.925	38.89375	44.45	Bearings, units and housings
PF 40 TR	40	-	-	Bearings, units and housings
SNL 3036 TURA	163.5125	-	-	Bearings, units and housings

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