Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71968 CDMA/P4A

71968 CDMA/P4A

Dimensions

d		340	mm
D		460	mm
B		56	mm
d₁		377	mm
d₂		377	mm
D₁		423	mm
r_1,2	min.	3	mm
r_3,4	min.	1.1	mm
a		81.8	mm

Abutment dimensions

d_a	min.	353	mm
d_b	min.	353	mm
D_a	max.	445	mm
D_b	max.	454	mm
r_a	max.	2.5	mm
r_b	max.	1	mm
d_n		387	mm

Calculation data

Basic dynamic load rating	C	390	kN
Basic static load rating	C₀	670	kN
Fatigue load limit	P_u	14.3	kN
Attainable speed for grease lubrication		2400	r/min
Attainable speed for oil-air lubrication		4000	r/min
Ball diameter	D_w	38.1	mm
Number of balls	z	29
Reference grease quantity	G_ref	294	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	1460	N
Static axial stiffness, preload class A		300	N/µm
Preload class B	G_B	2920	N
Static axial stiffness, preload class B		408	N/µm
Preload class C	G_C	5840	N
Static axial stiffness, preload class C		571	N/µm
Preload class D	G_D	11680	N
Static axial stiffness, preload class D		827	N/µm
Calculation factors
Calculation factor	f	1.27
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	16.6

Mass

Mass bearing

25.5

Model Number: 71968 CDMA/P4A
Inner Diameter：340mm Outer Diameter：460mm Width：56mm
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：2026-04-18
Application:Cylinder Type,economic mold,power source,Display Devices,motorcycle,Cutting Machine,medical equipment,hydraulic pressure gauge,Security Equipment,coal mill,plastic rolling
Similar models:71968 ACMB 71968 CDMA/HCP4A 71968 CDMA/P4A 71968 ACDMA/HCP4A 71968 ACDMA/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71968CDMA/P4A products，there is large inventory of SKF 71968 CDMA/P4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71968 CDMA/P4A Which SKF 71968CDMA/P4A 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.

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