Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71918 CB/HCP4A

71918 CB/HCP4A

Dimensions

d		90	mm
D		125	mm
B		18	mm
d₁		103	mm
d₂		101.4	mm
D₂		115	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		27.5	mm

Abutment dimensions

d_a	min.	96	mm
d_b	min.	96	mm
D_a	max.	119	mm
D_b	max.	121.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		103.9	mm

Calculation data

Basic dynamic load rating	C	23.8	kN
Basic static load rating	C₀	28.5	kN
Fatigue load limit	P_u	0.72	kN
Attainable speed for grease lubrication		16000	r/min
Attainable speed for oil-air lubrication		26000	r/min
Ball diameter	D_w	7.144	mm
Number of balls	z	36
Reference grease quantity	G_ref	7.37	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	59	N
Static axial stiffness, preload class A		59	N/µm
Preload class B	G_B	120	N
Static axial stiffness, preload class B		78	N/µm
Preload class C	G_C	355	N
Static axial stiffness, preload class C		124	N/µm
Calculation factors
Calculation factor	f	1.12
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.03
Calculation factor	f_2C	1.08
Calculation factor	f_HC	1.01
Calculation factor	f₀	10

Mass

Mass bearing

0.56

Model Number: 71918 CB/HCP4A
Inner Diameter：90mm Outer Diameter：125mm Width：18mm
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：2025-12-09
Application:Pneumatic Actuator,lifting chain,medical equipment,Gear grinding machine,marine analysis,Medical equipment,tower crane,small appliances,raw material accessories,municipal machinery,floor industry
Similar models:S71918 CE/HCP4A 71918 CD/P4A 71918 CE/HCP4AH1 71918 CB/P4A S71918 CD/P4A 71918 ACE/P4AH1 71918 ACD/P4AH1 71918 ACB/HCP4A 71918 ACD/HCP4AL S71918 CE/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71918CB/HCP4A products，there is large inventory of SKF 71918 CB/HCP4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71918 CB/HCP4A Which SKF 71918CB/HCP4A 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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