Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71818 ACD/P4

71818 ACD/P4

Dimensions

d		90	mm
D		115	mm
B		13	mm
d₁		98.2	mm
d₂		98.2	mm
D₁		107.1	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		30.5	mm

Abutment dimensions

d_a	min.	94.6	mm
d_b	min.	94.6	mm
D_a	max.	110.4	mm
D_b	max.	113	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		99.1	mm

Calculation data

Basic dynamic load rating	C	20.3	kN
Basic static load rating	C₀	25	kN
Fatigue load limit	P_u	1.04	kN
Attainable speed for grease lubrication		10000	r/min
Attainable speed for oil-air lubrication		15000	r/min
Ball diameter	D_w	7.144	mm
Number of balls	z	31
Reference grease quantity	G_ref	2.9	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	184	N
Static axial stiffness, preload class A		194	N/µm
Preload class B	G_B	555	N
Static axial stiffness, preload class B		307	N/µm
Preload class C	G_C	1110	N
Static axial stiffness, preload class C		420	N/µm
Calculation factors
Calculation factor	f	1.33
Calculation factor	f₁	0.97
Calculation factor	f_2A	1
Calculation factor	f_2B	1.08
Calculation factor	f_2C	1.15
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

0.28

Model Number: 71818 ACD/P4
Inner Diameter：90mm Outer Diameter：115mm Width：13mm
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：2024-12-13
Application:engineering machine,Small air generators,turret industry,Seals,marine analysis,raw material accessories,lifting upgrade,security equipment,chuck industry,Generator,Hydraulic Equipment
Similar models:71818 CD/P4 71818 ACD/P4 71818 ACD/HCP4 71818 CD/HCP4
BEARING POWER International Trading Co.,Ltd. specialize in 71818ACD/P4 products，there is large inventory of SKF 71818 ACD/P4 Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71818 ACD/P4 Which SKF 71818ACD/P4 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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