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：2025-12-09
Application:Industry,diving equipment,position switch,machine tool spindle,Wire grinder,Roller,coal mill,Industrial Electromechanical,animal,EEG,packaging machinery
Similar models:71968 ACDMA/HCP4A 71968 CDMA/HCP4A 71968 CDMA/P4A 71968 ACMB 71968 ACDMA/P4A
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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15542	39.7002	60.3	7.95	Seals
18623	47.625	68.9864	10.0076	Seals
19350	49.2252	76.12	7.95	Seals
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BD-23226 CCK/W33-AHX 3226 G	125	230	80	Bearings, units and housings
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78790	200.025	259.94	15.88	Seals
GEH 80 ES-2RS	80	130	75	Bearings, units and housings
NA 4909 RS	45	68	22	Bearings, units and housings
PSMF 9011050 A51	90	110	50	Bearings, units and housings
RNA 2207.2RS	42	72	22.7	Bearings, units and housings
S7211 ACD/P4A	55	100	21	Bearings, units and housings

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