Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71968 ACDMA/HCP4A

71968 ACDMA/HCP4A

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		121.6	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	364	kN
Basic static load rating	C₀	640	kN
Fatigue load limit	P_u	13.4	kN
Attainable speed for grease lubrication		2400	r/min
Attainable speed for oil-air lubrication		3800	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	2300	N
Static axial stiffness, preload class A		820	N/µm
Preload class B	G_B	4600	N
Static axial stiffness, preload class B		1073	N/µm
Preload class C	G_C	9200	N
Static axial stiffness, preload class C		1425	N/µm
Preload class D	G_D	18400	N
Static axial stiffness, preload class D		1934	N/µm
Calculation factors
Calculation factor	f	1.27
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.17
Calculation factor	f_HC	1.04
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

21.6

Model Number: 71968 ACDMA/HCP4A
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：2026-06-24
Application:container finishing,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,Leather Products,Display Devices,Laser Measurements,Broadcasting System,agricultural testing and analysis equipment and related,security equipment,Dental Drill etc,CNC,flexible processing
Similar models:71968 CDMA/HCP4A 71968 ACDMA/HCP4A 71968 ACDMA/P4A 71968 CDMA/P4A 71968 ACMB
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Model No. Inner Diameter Outer Diameter Width Type

65x85x10 HMS5 RG
7048 ACD/P4A
812/670 M
M 268749/710
SAFS 22518 T

Purchase the SKF 71968 ACDMA/HCP4A Please fill in the following

Hot number： 1310 ETN9 22353 BD-23276 CAK/W33-OH 3276 H 3209 A-2RS1TN9/MT33 61802-2RS1 6313-2Z/VA228 7308 ACCBM C 30/710 KM MB 13 OH 30/710 H OKCX 350 SAF 23048 KATLC x 8.15/16 SNW 3128x5 W 619/7 R-2RS1 YSPAG 208-108

Model No.	Inner Diameter	Outer Diameter	Width	Type
65x85x10 HMS5 RG
7048 ACD/P4A
812/670 M
M 268749/710
SAFS 22518 T