Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71908 CB/P4AL

71908 CB/P4AL

Dimensions

d		40	mm
D		62	mm
B		12	mm
d₁		48.46	mm
d₂		47.6	mm
D₂		55.64	mm
b		2	mm
C₁		5.9	mm
C₂		2.8	mm
C₃		1.7	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		14.8	mm

Abutment dimensions

d_a	min.	43.2	mm
d_b	min.	43.2	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		49.1	mm

Calculation data

Basic dynamic load rating	C	7.15	kN
Basic static load rating	C₀	6.95	kN
Fatigue load limit	P_u	0.176	kN
Attainable speed for grease lubrication		30000	r/min
Attainable speed for oil-air lubrication		45000	r/min
Ball diameter	D_w	3.969	mm
Number of balls	z	28
Reference grease quantity	G_ref	1.38	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	18	N
Static axial stiffness, preload class A		25	N/µm
Preload class B	G_B	36	N
Static axial stiffness, preload class B		32	N/µm
Preload class C	G_C	110	N
Static axial stiffness, preload class C		52	N/µm
Calculation factors
Calculation factor	f	1.06
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.07
Calculation factor	f_HC	1
Calculation factor	f₀	9.8

Mass

Mass bearing

0.12

Model Number: 71908 CB/P4AL
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：2025-11-29
Application:directional control valve,comprehensive experiment,Animal Tracking,Air,food / grain / food equipment,Dental Equipment,plastic molding,coupling type,engine,electronic components,Doppler
Similar models:S71908 CB/P4A 71908 CE/HCP4AL S71908 CB/HCP4A 71908 CE/P4AH1 S71908 CE/P4A 71908 ACE/HCP4A 71908 ACB/HCP4AL 71908 ACE/P4AL 71908 CE/P4A S71908 ACD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71908CB/P4AL products，there is large inventory of SKF 71908 CB/P4AL Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71908 CB/P4AL Which SKF 71908CB/P4AL is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express. Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

Model No.	Inner Diameter	Outer Diameter	Width	Type
14975	38.1	59.13	9.91	Seals
1575 VE R	1495	-	-	Seals
408500	785	-	-	Seals
61936 MA	180	250	33	Bearings, units and housings
BTM 60 BTN9/HCP4CDB	60	95	33	Bearings, units and housings
ECY 207	-	-	-	Bearings, units and housings
GS 81236	180	250	17	Bearings, units and housings
H 307 EL	30	52	35	Bearings, units and housings
MS 3196	-	-	36	Bearings, units and housings
OKC 710	710		-
PCMW 527802 E	52	78	-	Bearings, units and housings
RNU 205 ECP	31.5	52	15	Bearings, units and housings

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Hot number： 105x135x12 HMSA10 RG 12621 23088 CAK/W33 408703 528525 6028 7218 BECBJ BTM 160 BM/P4CDB GEP 140 FS H 212 HE 2332 NAO 17x30x13 NNU 4920 B/SPW33 SAF 22544 x 7.13/16 SYR 1 3/4-3