Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71828 CD/P4

71828 CD/P4

Dimensions

d		140	mm
D		175	mm
B		18	mm
d₁		151.3	mm
d₂		151.3	mm
D₁		163.71	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm
a		30.2	mm

Abutment dimensions

d_a	min.	146	mm
d_b	min.	146	mm
D_a	max.	169	mm
D_b	max.	171.8	mm
r_a	max.	1	mm
r_b	max.	0.6	mm
d_n		153.2	mm

Calculation data

Basic dynamic load rating	C	44.9	kN
Basic static load rating	C₀	62	kN
Fatigue load limit	P_u	2.12	kN
Attainable speed for grease lubrication		6300	r/min
Attainable speed for oil-air lubrication		10000	r/min
Ball diameter	D_w	10.319	mm
Number of balls	z	35
Reference grease quantity	G_ref	9.9	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	240	N
Static axial stiffness, preload class A		130	N/µm
Preload class B	G_B	720	N
Static axial stiffness, preload class B		226	N/µm
Preload class C	G_C	1440	N
Static axial stiffness, preload class C		336	N/µm
Calculation factors
Calculation factor	f	1.43
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.09
Calculation factor	f_2C	1.16
Calculation factor	f_HC	1
Calculation factor	f₀	17.3

Mass

Mass bearing

0.8

Model Number: 71828 CD/P4
Inner Diameter：140mm Outer Diameter：175mm 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：2026-04-16
Application:circulating pump,Laser Measurements,Anesthetic Equipment,Dental Drill etc,chemical instruments,Other machinery,Optical detection,squeeze machine etc,medical equipment,E Beauty,plant determination
Similar models:71828 ACD/P4 71828 CD/P4 71828 ACD/HCP4 71828 CD/HCP4
BEARING POWER International Trading Co.,Ltd. specialize in 71828CD/P4 products，there is large inventory of SKF 71828 CD/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 71828 CD/P4 Which SKF 71828CD/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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