Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71908 CE/HCP4AH1

71908 CE/HCP4AH1

Dimensions

d		40	mm
D		62	mm
B		12	mm
d₁		46.5	mm
d₂		44.8	mm
D₁		54.15	mm
K		0.5	mm
C₁		3.75	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		13.2	mm

Abutment dimensions

d_a	min.	43.2	mm
d_b	min.	42	mm
D_a	max.	58.8	mm
D_b	max.	60	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm
d_n		48	mm

Calculation data

Basic dynamic load rating	C	9.75	kN
Basic static load rating	C₀	6.1	kN
Fatigue load limit	P_u	0.26	kN
Attainable speed for grease lubrication		38000	r/min
Attainable speed for oil-air lubrication		58000	r/min
Ball diameter	D_w	6.35	mm
Number of balls	z	19
Reference grease quantity	G_ref	1.4	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	52	N
Static axial stiffness, preload class A		35	N/µm
Preload class B	G_B	157	N
Static axial stiffness, preload class B		55	N/µm
Preload class C	G_C	315	N
Static axial stiffness, preload class C		74	N/µm
Calculation factors
Calculation factor	f	1.05
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

0.088

Model Number: 71908 CE/HCP4AH1
Inner Diameter：40mm Outer Diameter：62mm Width：12mm
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：2025-12-09
Application:power tools,Spectrum Products,suction nozzle,hook,electrostatic protection,medical equipment,scientific instruments,hydraulic pump,pipe fittings Steel industry,,molding machine
Similar models:71908 CB/HCP4A 71908 CE/HCP4AL 71908 CB/P4AL 71908 CB/HCP4AL S71908 CB/P4A S71908 CE/P4A S71908 CD/P4A 71908 ACE/HCP4A S71908 ACD/HCP4A 71908 ACB/P4AL
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SAF 23044 KATLC x 7.7/8	203.2	-	-	Bearings, units and housings
SAFS 22520 x 3.3/8 TLC	85.725	-	-	Bearings, units and housings
SNL 3196 TURT	450	-	-	Bearings, units and housings

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