Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71940 CD/P4A

71940 CD/P4A

Dimensions

d		200	mm
D		280	mm
B		38	mm
d₁		224.7	mm
d₂		224.7	mm
D₁		255.3	mm
r_1,2	min.	2.1	mm
r_3,4	min.	1	mm
a		51.3	mm

Abutment dimensions

d_a	min.	209	mm
d_b	min.	209	mm
D_a	max.	271	mm
D_b	max.	275	mm
r_a	max.	2	mm
r_b	max.	1	mm
d_n		231.4	mm

Calculation data

Basic dynamic load rating	C	208	kN
Basic static load rating	C₀	265	kN
Fatigue load limit	P_u	7.2	kN
Attainable speed for grease lubrication		4800	r/min
Attainable speed for oil-air lubrication		7000	r/min
Ball diameter	D_w	25.4	mm
Number of balls	z	26
Reference grease quantity	G_ref	81	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	800	N
Static axial stiffness, preload class A		202	N/µm
Preload class B	G_B	1600	N
Static axial stiffness, preload class B		275	N/µm
Preload class C	G_C	3200	N
Static axial stiffness, preload class C		387	N/µm
Preload class D	G_D	6400	N
Static axial stiffness, preload class D		565	N/µm
Calculation factors
Calculation factor	f	1.23
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

6.1

Model Number: 71940 CD/P4A
Inner Diameter：200mm Outer Diameter：280mm Width：38mm
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:X-ray Equipment,security equipment,quality inspection equipment,printing equipment,axle lathe,Machine tools,sewage pump,ship special,magnetic elements,cooling system,Industrial
Similar models:71940 ACD/HCP4A 71940 CD/HCP4AH1 71940 CD/P4AH1 71940 CD/HCP4A 71940 ACD/P4A 71940 ACD/P4AH1 71940 ACD/HCP4AH1 71940 CD/P4A
BEARING POWER International Trading Co.,Ltd. specialize in 71940CD/P4A products，there is large inventory of SKF 71940 CD/P4A Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71940 CD/P4A Which SKF 71940CD/P4A 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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
10728	27	50.27	6.35	Seals
21211	53.975	77.75	12.7	Seals
2306	30	72	27	Bearings, units and housings
618/630 MA	630	780	69	Bearings, units and housings
7455	19.05	31.75	6.35	Seals
FSAF 1516 x 2.3/4	69.85	-	-	Bearings, units and housings
HA 3126 L	112.7125	155	92	Bearings, units and housings
HA 3132	138.1125	160	119	Bearings, units and housings
HE 319	82.55	95	68	Bearings, units and housings
KMD 7	22	-	35	Bearings, units and housings
NJ 330 ECML	150	320	65	Bearings, units and housings
PBMF 182516 M1G1	18	25	16	Bearings, units and housings

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Hot number： 13739 1850 VE R BD-22352 CCK/W33-OH 2352 H 402006 40x59x8 HMS5 V 47395 60x95x10 HMSA10 RG 6210-2Z/VA228 71830 CD/HCP4 7211 BE-2RZP TQO design NATR 5 PPA PCM 161825 M PCMW 284801.5 E SNL 3156 G