Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71906 CD/P4A

71906 CD/P4A

Dimensions

d		30	mm
D		47	mm
B		9	mm
d₁		35.6	mm
d₂		35.6	mm
D₁		41.4	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.2	mm
a		9.7	mm

Abutment dimensions

d_a	min.	32	mm
d_b	min.	32	mm
D_a	max.	45	mm
D_b	max.	45.6	mm
r_a	max.	0.3	mm
r_b	max.	0.2	mm
d_n		36.8	mm

Calculation data

Basic dynamic load rating	C	7.15	kN
Basic static load rating	C₀	4.55	kN
Fatigue load limit	P_u	0.193	kN
Attainable speed for grease lubrication		30000	r/min
Attainable speed for oil-air lubrication		45000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	20
Reference grease quantity	G_ref	0.63	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	25	N
Static axial stiffness, preload class A		26	N/µm
Preload class B	G_B	50	N
Static axial stiffness, preload class B		35	N/µm
Preload class C	G_C	100	N
Static axial stiffness, preload class C		47	N/µm
Preload class D	G_D	200	N
Static axial stiffness, preload class D		67	N/µm
Calculation factors
Calculation factor	f	1.08
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	10.4

Mass

Mass bearing

0.048

Model Number: 71906 CD/P4A
Inner Diameter：30mm Outer Diameter：47mm Width：9mm
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：2021-06-03
Application:magnetic elements,vertical pull,education model Instruments,paint paint,switch,spectrometer,vertical sawing machine,extruder,car,motorcycle,hardware
Similar models:71906 CE/P4AH S71906 CE/P4A 71906 CE/P4A 71906 CE/HCP4AH 71906 ACE/HCP4AH 71906 ACE/HCP4A S71906 ACE/HCP4A S71906 ACD/HCP4A 71906 CB/P4A 71906 ACE/P4AL
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Model No.	Inner Diameter	Outer Diameter	Width	Type
235x270x16 HDS2 R	235	270	16	Seals
470496	483	-	-	Seals
52655	133.35	180.98	12.7	Seals
7019 CD/HCP4AH1	95	145	24	Bearings, units and housings
80 VA R	72	-	-	Seals
BT4B 332654/HA1	352.425	488.95	-	Bearings, units and housings
GEH 20 C	20	42	25	Bearings, units and housings
GEM 25 ESL-2LS	25	42	29	Bearings, units and housings
NU 312 ECPH	60	130	31	Bearings, units and housings
OKF 170	170	390	-
SAF 22538 x 7 T	177.8	-	-	Bearings, units and housings
ZW 65x72	65	72	2	Seals

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Hot number： 13812 24160 CCK30/W33 22582 35x55x7 HMS5 V 6300/HR11TN 6309 7308 BEGAP BK 0509 HE 308 NA 4922 NU 2268 N2MA QJ 207 N2MA RNA 4907 RS SAF 22617 x 3 T SNW 128x4.7/8