Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71909 ACD/P4A

71909 ACD/P4A

Dimensions

d		45	mm
D		68	mm
B		12	mm
d₁		52.6	mm
d₂		52.6	mm
D₁		60.4	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		19.3	mm

Abutment dimensions

d_a	min.	48.2	mm
d_b	min.	48.2	mm
D_a	max.	64.8	mm
D_b	max.	66.6	mm
r_a	max.	0.6	mm
r_b	max.	0.3	mm
d_n		54.2	mm

Calculation data

Basic dynamic load rating	C	12.4	kN
Basic static load rating	C₀	9	kN
Fatigue load limit	P_u	0.38	kN
Attainable speed for grease lubrication		17000	r/min
Attainable speed for oil-air lubrication		28000	r/min
Ball diameter	D_w	6.35	mm
Number of balls	z	23
Reference grease quantity	G_ref	1.62	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	80	N
Static axial stiffness, preload class A		100	N/µm
Preload class B	G_B	160	N
Static axial stiffness, preload class B		129	N/µm
Preload class C	G_C	320	N
Static axial stiffness, preload class C		168	N/µm
Preload class D	G_D	640	N
Static axial stiffness, preload class D		225	N/µm
Calculation factors
Calculation factor	f	1.11
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

0.13

Model Number: 71909 ACD/P4A
Inner Diameter：45mm Outer Diameter：68mm 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：2026-04-16
Application:equipment,gantry processing,reinforced machinery,Special Equipment,auto tools,Sensors,chamfer,teaching equipment,transportation equipment,test strip,CNC
Similar models:71909 CB/HCP4AL S71909 CE/P4A 71909 ACB/P4AL 71909 CB/HCP4A 71909 CB/P4AL 71909 CE/P4AH1 S71909 ACB/P4A S71909 ACD/P4A S71909 ACE/HCP4A 71909 ACB/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71909ACD/P4A products，there is large inventory of SKF 71909 ACD/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 71909 ACD/P4A Which SKF 71909ACD/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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
14886	38.1	53.98	7.95	Seals
BD-23128 CCK/W33-AHX 3128	135	225	68	Bearings, units and housings
36x62x7 HMSA10 V	36	62	7	Seals
42x55x8 CRW1 V	42	55	8	Seals
511/710 F	710	850	112	Bearings, units and housings
6318	90	190	43	Bearings, units and housings
7028 ACD/HCP4A	140	210	33	Bearings, units and housings
89417 M	85	180	58	Bearings, units and housings
AOH 240/560 G	530	560	296	Bearings, units and housings
G 7x14x2 S	7	14	2	Seals
NK 7/12 TN	7	14	12	Bearings, units and housings
SNP 3096x18	457.2	480	239.9284	Bearings, units and housings

Purchase the SKF 71909 ACD/P4A Please fill in the following

Hot number： 29208 40020 6318 7320 BEGAF 85762 AOH 24076 FYT 45 TF/VA228 HE 2319 EL KR 32 PPA NATR 20 NATV 25 PPXA PSMF 455530 A51 SAFS 22534 x 5.13/16 T SNW 116x2.11/16 SSAFS 23056 KAT x 10.1/2