Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71811 CD/HCP4

71811 CD/HCP4

Dimensions

d		55	mm
D		72	mm
B		9	mm
d₁		60.7	mm
d₂		60.7	mm
D₁		66.5	mm
r_1,2	min.	0.3	mm
r_3,4	min.	0.15	mm
a		13	mm

Abutment dimensions

d_a	min.	57	mm
d_b	min.	57	mm
D_a	max.	70	mm
D_b	max.	71.2	mm
r_a	max.	0.3	mm
r_b	max.	0.15	mm
d_n		61.3	mm

Calculation data

Basic dynamic load rating	C	10.1	kN
Basic static load rating	C₀	10.8	kN
Fatigue load limit	P_u	0.455	kN
Attainable speed for grease lubrication		22000	r/min
Attainable speed for oil-air lubrication		32000	r/min
Ball diameter	D_w	4.762	mm
Number of balls	z	29
Reference grease quantity	G_ref	0.88	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	55	N
Static axial stiffness, preload class A		59	N/µm
Preload class B	G_B	165	N
Static axial stiffness, preload class B		101	N/µm
Preload class C	G_C	330	N
Static axial stiffness, preload class C		150	N/µm
Calculation factors
Calculation factor	f	1.27
Calculation factor	f₁	1
Calculation factor	f_2A	1
Calculation factor	f_2B	1.1
Calculation factor	f_2C	1.18
Calculation factor	f_HC	1.02
Calculation factor	f₀	17.1

Mass

Mass bearing

0.073

Model Number: 71811 CD/HCP4
Inner Diameter：55mm Outer Diameter：72mm Width：9mm
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:Spectrum Products,EEG,reinforced machinery,luminescent reagent,horizontal processing,equipment and,extruder,generator,Cylinder Pneumatic Treatment Element,Security Equipment,light therapy instrument
Similar models:71811 CD/P4 71811 CD/HCP4 71811 ACD/HCP4
BEARING POWER International Trading Co.,Ltd. specialize in 71811CD/HCP4 products，there is large inventory of SKF 71811 CD/HCP4 Angular contact ball bearings, super-precision. We has been built up long-term cooperation with SKF company, could make a bulk order of the 71811 CD/HCP4 Which SKF 71811CD/HCP4 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
13869	34.925	57.15	7.95	Seals
16x40x7 CRW1 R	16	40	7	Seals
26x47x7 HMS5 RG	26	47	7	Seals
BT4-0016 G/HA1C445VA901	304.902	412.648	-	Bearings, units and housings
BD-C 39/710 KM-OH 39/710 HE	670	950	180	Bearings, units and housings
GEZM 208 ES	63.5	100.013	47.625	Bearings, units and housings
HA 315	61.9125	98	55	Bearings, units and housings
NUP 313 ECML	65	140	33	Bearings, units and housings
PCM 11512050 E	115	120	50	Bearings, units and housings
SAFS 23056 KATLC x 9.15/16	252.4125	-	-	Bearings, units and housings
SNW 3034x6	152.4	200.152	101.8286	Bearings, units and housings
W 628/7 R-2RS1	7	14	5	Bearings, units and housings

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Hot number： 16101-2RS1 62572 87723 C 31/530 KM H 3030 HME 3080 NU 1056 M NUP 203 ECP S71926 CD/P4A SAA 70 ESX-2LS SAFS 22640 x 7.1/4 SHT 55 SNW 16x2.5/8 SY 1.1/4 FM W 607 R