Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71908 ACB/HCP4A

S71908 ACB/HCP4A

Dimensions

d		40	mm
D		62	mm
B		12	mm
d₁		48.46	mm
d₂		47.6	mm
D₂		55.64	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		20.2	mm

Abutment dimensions

d_a	min.	43.2	mm
d_a	max.	47.9	mm
d_b	min.	43.2	mm
d_b	max.	47	mm
D_a	max.	58.8	mm
D_b	max.	60	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	6.76	kN
Basic static load rating	C₀	6.4	kN
Fatigue load limit	P_u	0.166	kN
Attainable speed for grease lubrication		32000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	28
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	31	N
Static axial stiffness, preload class A		73	N/µm
Preload class B	G_B	62	N
Static axial stiffness, preload class B		92	N/µm
Preload class C	G_C	185	N
Static axial stiffness, preload class C		138	N/µm
Calculation factors
Calculation factor	f	1.06
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1.01
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

0.12

Model Number: S71908 ACB/HCP4A
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：2024-12-13
Application:Roller,mathematical instruments,agricultural testing and analysis equipment and related,chuck industry,Pest Monitoring,garden machinery,safety testing,Cutting Machine,Vertical machining,leather processing,extruder
Similar models:71908 ACE/P4AH1 71908 ACB/P4AL S71908 ACD/P4A 71908 ACE/HCP4A 71908 CE/P4AL 71908 CE/HCP4A 71908 CE/HCP4AL 71908 CD/HCP4A S71908 ACD/HCP4A S71908 CB/HCP4A
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Hot number： 18657 24152-2CS5/VT143 7517 7316 BECCM 89306 TN 99810 BD-C 2317 K-H 2317 GS 89414 HK 1012 N 324 ECM OH 3260 H S7013 CD/P4A SAF 22611-210 SAW 23520 x 3.1/2 SYR 2 N-118