Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71940 CD/HCP4A

71940 CD/HCP4A

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		6000	r/min
Attainable speed for oil-air lubrication		8500	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		224	N/µm
Preload class B	G_B	1600	N
Static axial stiffness, preload class B		305	N/µm
Preload class C	G_C	3200	N
Static axial stiffness, preload class C		430	N/µm
Preload class D	G_D	6400	N
Static axial stiffness, preload class D		627	N/µm
Calculation factors
Calculation factor	f	1.23
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.07
Calculation factor	f_2C	1.12
Calculation factor	f_2D	1.18
Calculation factor	f_HC	1.04
Calculation factor	f₀	16.3

Mass

Mass bearing

5.11

Model Number: 71940 CD/HCP4A
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:decoration machinery,Dental Drill etc,Cylinder Micro,experimental equipment,marine analysis,switch,turret industry,gear grinding machine,impression material,Equipment,filter paper products
Similar models:71940 ACD/P4AH1 71940 ACD/HCP4A 71940 CD/P4A 71940 CD/P4AH1 71940 CD/HCP4AH1 71940 CD/HCP4A 71940 ACD/P4A 71940 ACD/HCP4AH1
BEARING POWER International Trading Co.,Ltd. specialize in 71940CD/HCP4A products，there is large inventory of SKF 71940 CD/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 71940 CD/HCP4A Which SKF 71940CD/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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22311 EK	55	120	43	Bearings, units and housings
22647	57.15	101.68	11.13	Seals
313450 B	320	440	72	Bearings, units and housings
32913	65	90	17	Bearings, units and housings
60888 MA	440	540	31	Bearings, units and housings
6000-2RSL	10	26	8	Bearings, units and housings
FY 1.3/16 TF/VA201	30.163	-	42.2	Bearings, units and housings
NJ 214 ECPH	70	125	24	Bearings, units and housings
NU 2210 ECP	50	90	23	Bearings, units and housings
SAF 22234	170	-	-	Bearings, units and housings
SAF 22616 x 2.5/8	66.675	-	-	Bearings, units and housings
Z 015	75	-	7	Seals

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Hot number： 10047 115041 241/530 ECAK30/W33 32048T164 X/DB 319161 38x50x7 HMS5 V BT1B 328068/HA4 BSA 208 C CRM 18 A IR 120x130x30 OKF 600 P 1. FM RNA 6902 SAF 1616 x 2.5/8 T SIL 40 ESX-2LS