Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF S71908 CD/P4A

S71908 CD/P4A

Dimensions

d		40	mm
D		62	mm
B		12	mm
d₁		47.1	mm
d₂		47.1	mm
D₂		57.12	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		12.9	mm

Abutment dimensions

d_a	min.	43.2	mm
d_a	max.	46.6	mm
d_b	min.	43.2	mm
d_b	max.	46.6	mm
D_a	max.	58.8	mm
D_b	max.	60.6	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	12.4	kN
Basic static load rating	C₀	8.5	kN
Fatigue load limit	P_u	0.36	kN
Attainable speed for grease lubrication		20000	r/min
Ball diameter	D_w	6.35	mm
Number of balls	z	21
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	45	N
Static axial stiffness, preload class A		36	N/µm
Preload class B	G_B	90	N
Static axial stiffness, preload class B		48	N/µm
Preload class C	G_C	180	N
Static axial stiffness, preload class C		66	N/µm
Preload class D	G_D	360	N
Static axial stiffness, preload class D		93	N/µm
Calculation factors
Calculation factor	f	1.09
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

0.11

Model Number: S71908 CD/P4A
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：2026-04-16
Application:DC generators,generator,Automation,inorganic chemical,mathematical instruments,chemical instruments,auto tools,natural instruments,Performance test,Internal thread type,Spectrum Products
Similar models:S71908 ACD/P4A S71908 CB/P4A S71908 ACE/P4A 71908 ACE/P4A S71908 CE/P4A 71908 CB/HCP4A 71908 CB/P4AL 71908 ACE/P4AH1 S71908 ACE/HCP4A 71908 ACE/P4AL
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Hot number： 25x37x6 HMSA10 RG 35x62x8 CRW1 V 44x65x10 HMSA10 RG 6243 67.1x86.7x15.4 TP 7219 CD/P4A 725 VA R AH 3140 BEAM 017062-2RZ GS 81112 KR 19 PPXA NUTR 25 A PBM 250270250 M1G1 RNA 4917 W 19