Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 7018 CB/P4A

7018 CB/P4A

Dimensions

d		90	mm
D		140	mm
B		24	mm
d₁		108.7	mm
d₂		106.13	mm
D₂		125	mm
r_1,2	min.	1.5	mm
r_3,4	min.	1	mm
a		27.5	mm

Abutment dimensions

d_a	min.	97	mm
d_b	min.	97	mm
D_a	max.	133	mm
D_b	max.	135.4	mm
r_a	max.	1.5	mm
r_b	max.	1	mm
d_n		110	mm

Calculation data

Basic dynamic load rating	C	37.7	kN
Basic static load rating	C₀	43	kN
Fatigue load limit	P_u	0.98	kN
Attainable speed for grease lubrication		12000	r/min
Attainable speed for oil-air lubrication		19000	r/min
Ball diameter	D_w	10.319	mm
Number of balls	z	25
Reference grease quantity	G_ref	14.1	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	92	N
Static axial stiffness, preload class A		54	N/µm
Preload class B	G_B	185	N
Static axial stiffness, preload class B		71	N/µm
Preload class C	G_C	550	N
Static axial stiffness, preload class C		112	N/µm
Calculation factors
Calculation factor	f	1.07
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.05
Calculation factor	f_HC	1
Calculation factor	f₀	9.7

Mass

Mass bearing

1.25

Model Number: 7018 CB/P4A
Inner Diameter：90mm Outer Diameter：140mm Width：24mm
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:water,spring industry,special broaching machine,large agricultural machinery,Wire grinder,Other Machine Tools,enzyme,wall materials,Doppler,Broadcasting System,plastic molding
Similar models:7018 CE/HCP4AL 7018 CE/P4A S7018 CB/HCP4A S7018 ACE/P4A S7018 ACD/HCP4A 7018 CE/HCP4AH1 7018 ACD/P4A 7018 ACB/HCP4A 7018 CD/P4AL 7018 CE/P4AH1
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Hot number： 13571 16692 19979 230/670 CAK/W33 525 VRME R 71913 CE/HCP4A FYAWK 508 L HM 31/560 N 1013 KPHA/SP NJ 18/1180 ECMA NJ 422 M NU 1292 MA SA 30 ES W 63800-2RS1 SY 45 TDW