Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71906 CE/HCP4A

71906 CE/HCP4A

Dimensions

d		30	mm
D		47	mm
B		9	mm
d₁		35.8	mm
d₂		34.4	mm
D₁		41.39	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		10.1	mm

Abutment dimensions

d_a	min.	32	mm
d_b	min.	32	mm
D_a	max.	45	mm
D_b	max.	46.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		36.8	mm

Calculation data

Basic dynamic load rating	C	5.59	kN
Basic static load rating	C₀	3.25	kN
Fatigue load limit	P_u	0.14	kN
Attainable speed for grease lubrication		49000	r/min
Attainable speed for oil-air lubrication		75000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	18
Reference grease quantity	G_ref	0.6	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	30	N
Static axial stiffness, preload class A		25	N/µm
Preload class B	G_B	90	N
Static axial stiffness, preload class B		39	N/µm
Preload class C	G_C	180	N
Static axial stiffness, preload class C		54	N/µm
Calculation factors
Calculation factor	f	1.08
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.05
Calculation factor	f_2C	1.09
Calculation factor	f_HC	1.01
Calculation factor	f₀	8.3

Mass

Mass bearing

0.045

Model Number: 71906 CE/HCP4A
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：2026-04-16
Application:plastic molding,machining,packaging materials,gear type,Industry,electric pump,key lock,squeeze machine etc,paper processing machine,Performance test,packaging machinery
Similar models:S71906 CE/P4A 71906 CE/P4A 71906 ACB/HCP4A 71906 ACE/P4A 71906 CD/HCP4A S71906 ACB/P4A S71906 ACD/HCP4A 71906 ACE/P4AH 71906 ACB/P4A 71906 ACE/P4AL
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Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-22332-2CS5K/VT143-H 2332	140	340	114	Bearings, units and housings
31185	79.375	104.78	11.13	Seals
420x460x20 HDS1 R	420	460	20	Seals
60x110x8 CRW1 R	60	110	8	Seals
90x110x12 HMSA10 RG	90	110	12	Seals
AOH 30/750	710	750	300	Bearings, units and housings
BS2-2309-2RS/VT143	45	100	42	Bearings, units and housings
FY 3/4 TF	19.05	-	-	Bearings, units and housings
GEZM 212 ESX-2LS	69.85	111.125	104.775	Bearings, units and housings
NJ 2209 ECP	45	85	23	Bearings, units and housings
NU 315 ECP/VL0241	75	160	37	Bearings, units and housings
OKC 640	640		-

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