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

71909 CD/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		13.6	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	13	kN
Basic static load rating	C₀	9.5	kN
Fatigue load limit	P_u	0.4	kN
Attainable speed for grease lubrication		19000	r/min
Attainable speed for oil-air lubrication		32000	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	50	N
Static axial stiffness, preload class A		40	N/µm
Preload class B	G_B	100	N
Static axial stiffness, preload class B		53	N/µm
Preload class C	G_C	200	N
Static axial stiffness, preload class C		73	N/µm
Preload class D	G_D	400	N
Static axial stiffness, preload class D		103	N/µm
Calculation factors
Calculation factor	f	1.11
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.04
Calculation factor	f_2C	1.09
Calculation factor	f_2D	1.15
Calculation factor	f_HC	1
Calculation factor	f₀	10.5

Mass

Mass bearing

0.13

Model Number: 71909 CD/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：2024-12-14
Application:set bacteria instrument,flow control valve,instrumentation instrument,office outdoor camping equipment,Workpiece,Cylinder Special,Gas turbine,shoe-making machinery,ECG,Hairbrush device,Machine Tool Accessories
Similar models:71909 CD/HCP4A 71909 CE/P4A S71909 ACB/P4A 71909 ACE/HCP4AL 71909 CE/P4AH1 S71909 CD/P4A 71909 ACE/HCP4AH1 71909 CE/HCP4AH1 71909 ACE/P4AL 71909 ACE/HCP4A
BEARING POWER International Trading Co.,Ltd. specialize in 71909CD/P4A products，there is large inventory of SKF 71909 CD/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 CD/P4A Which SKF 71909CD/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
18892	48.006	69.85	13.208	Seals
7012 CD/P4AL	60	95	18	Bearings, units and housings
70x85x8 HMSA10 V	70	85	8	Seals
71803 ACD/HCP4	17	26	5	Bearings, units and housings
71914 CD/HCP4AH1	70	100	16	Bearings, units and housings
950x1006x20 HDS2 R	950	1006	20	Seals
GEM 70 ESX-2LS	70	105	40	Bearings, units and housings
GEP 670 FS	670	950	450	Bearings, units and housings
GX 80 F	80	180	50	Bearings, units and housings
K 68x74x30	68	74	30	Bearings, units and housings
OH 39/900 HE	850	900	326	Bearings, units and housings
S7013 CE/P4A	65	100	18	Bearings, units and housings

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