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

71968 ACDMA/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		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		2000	r/min
Attainable speed for oil-air lubrication		3200	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		739	N/µm
Preload class B	G_B	4600	N
Static axial stiffness, preload class B		967	N/µm
Preload class C	G_C	9200	N
Static axial stiffness, preload class C		1284	N/µm
Preload class D	G_D	18400	N
Static axial stiffness, preload class D		1742	N/µm
Calculation factors
Calculation factor	f	1.27
Calculation factor	f₁	0.98
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.08
Calculation factor	f_2D	1.14
Calculation factor	f_HC	1
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

25.5

Model Number: 71968 ACDMA/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：2026-04-17
Application:Reflective Materials Industrial fabrics,motor,luminescent reagent,suction nozzle,clean stationery,lifting chain,Laser Cutting,physical instruments,Textile Accessories,medical equipment,blood cell reagent
Similar models:71968 ACDMA/HCP4A 71968 CDMA/P4A 71968 ACDMA/P4A 71968 ACMB 71968 CDMA/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 71968ACDMA/P4A products，there is large inventory of SKF 71968 ACDMA/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 ACDMA/P4A Which SKF 71968ACDMA/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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