Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71936 CD/P4A

71936 CD/P4A

Dimensions

d		180	mm
D		250	mm
B		33	mm
d₁		201.6	mm
d₂		201.6	mm
D₁		228.4	mm
r_1,2	min.	2	mm
r_3,4	min.	1	mm
a		45.4	mm

Abutment dimensions

d_a	min.	189	mm
d_b	min.	189	mm
D_a	max.	241	mm
D_b	max.	245	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		207.4	mm

Calculation data

Basic dynamic load rating	C	168	kN
Basic static load rating	C₀	212	kN
Fatigue load limit	P_u	6.1	kN
Attainable speed for grease lubrication		5300	r/min
Attainable speed for oil-air lubrication		8000	r/min
Ball diameter	D_w	22.225	mm
Number of balls	z	27
Reference grease quantity	G_ref	54	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	630	N
Static axial stiffness, preload class A		183	N/µm
Preload class B	G_B	1260	N
Static axial stiffness, preload class B		250	N/µm
Preload class C	G_C	2520	N
Static axial stiffness, preload class C		353	N/µm
Preload class D	G_D	5040	N
Static axial stiffness, preload class D		516	N/µm
Calculation factors
Calculation factor	f	1.25
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	16.3

Mass

Mass bearing

4.2

Model Number: 71936 CD/P4A
Inner Diameter：180mm Outer Diameter：250mm Width：33mm
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:marine analysis and testing equipment,ventilation heating equipment,Logistics Equipment,lathe,container finishing,noise reduction equipment,Oral Equipment,pump accessories,Machine tools,Vacuum generator,vertical sawing machine
Similar models:71936 ACD/P4AH1 71936 CD/P4A 71936 CD/HCP4A 71936 ACD/HCP4A 71936 ACD/HCP4AH1 71936 ACD/P4A 71936 CD/HCP4AH1 71936 CD/P4AH1
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