Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71909 ACB/P4AL

71909 ACB/P4AL

Dimensions

d		45	mm
D		68	mm
B		12	mm
d₁		53.45	mm
d₂		52.4	mm
D₂		61.8	mm
b		2	mm
C₁		5.9	mm
C₂		2.8	mm
C₃		1.7	mm
r_1,2	min.	0.6	mm
r_3,4	min.	0.3	mm
a		22.1	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	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	9.56	kN
Basic static load rating	C₀	9	kN
Fatigue load limit	P_u	0.232	kN
Attainable speed for grease lubrication		24000	r/min
Attainable speed for oil-air lubrication		38000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	27
Reference grease quantity	G_ref	1.75	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	41	N
Static axial stiffness, preload class A		74	N/µm
Preload class B	G_B	82	N
Static axial stiffness, preload class B		95	N/µm
Preload class C	G_C	245	N
Static axial stiffness, preload class C		143	N/µm
Calculation factors
Calculation factor	f	1.08
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.07
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 ACB/P4AL
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:Material handling equipment,spring industry,Workpiece,medical equipment,Ball screw,trolley,Broadcasting System,ECG,lifting equipment Hoisting hoist,tube,lifting tackle
Similar models:S71909 CE/P4A 71909 ACE/HCP4AL S71909 ACD/P4A S71909 ACE/P4A S71909 ACE/HCP4A 71909 ACE/HCP4A 71909 CB/P4AL 71909 CE/P4AH1 71909 CB/HCP4A 71909 CE/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71909ACB/P4AL products，there is large inventory of SKF 71909 ACB/P4AL 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 ACB/P4AL Which SKF 71909ACB/P4AL 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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Hot number： 125x160x15 HMSA10 RG 16536 6335 812/560 M 99873 BT4B 332814/HA1 BT4B 334014 G/HA1VA901 FYWK 15/16 YTA GE 220 ES-2RS GS 89309 HA 3140 OH 3984 H SAFS 22218-11 SAFS 22517-11 x 2.13/16 TLC W 619/8