Bearings, units and housings -- Super-precision bearings -- Angular contact ball bearings -- Angular contact ball bearings, super-precision -- SKF 71821 ACD/HCP4

71821 ACD/HCP4

Dimensions

d		105	mm
D		130	mm
B		13	mm
d₁		113.2	mm
d₂		113.2	mm
D₁		122	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm
a		34	mm

Abutment dimensions

d_a	min.	109.6	mm
d_b	min.	109.6	mm
D_a	max.	125.4	mm
D_b	max.	128	mm
r_a	max.	1	mm
r_b	max.	0.3	mm
d_n		114.6	mm

Calculation data

Basic dynamic load rating	C	21.6	kN
Basic static load rating	C₀	28.5	kN
Fatigue load limit	P_u	1.1	kN
Attainable speed for grease lubrication		9500	r/min
Attainable speed for oil-air lubrication		15000	r/min
Ball diameter	D_w	7.144	mm
Number of balls	z	35
Reference grease quantity	G_ref	4	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	200	N
Static axial stiffness, preload class A		244	N/µm
Preload class B	G_B	600	N
Static axial stiffness, preload class B		392	N/µm
Preload class C	G_C	1200	N
Static axial stiffness, preload class C		541	N/µm
Calculation factors
Calculation factor	f	1.44
Calculation factor	f₁	0.97
Calculation factor	f_2A	1
Calculation factor	f_2B	1.09
Calculation factor	f_2C	1.17
Calculation factor	f_HC	1.02
Calculation factor	e	0.68
Calculation factor (single, tandem)	Y₂	0.87
Calculation factor (single, tandem)	Y₀	0.38
Calculation factor (single, tandem)	X₂	0.41
Calculation factor (back-to-back, face-to-face)	Y₁	0.92
Calculation factor (back-to-back, face-to-face)	Y₂	1.41
Calculation factor (back-to-back, face-to-face)	Y₀	0.76
Calculation factor (back-to-back, face-to-face)	X₂	0.67

Mass

Mass bearing

0.29

Model Number: 71821 ACD/HCP4
Inner Diameter：105mm Outer Diameter：130mm Width：13mm
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：2021-06-03
Application:rolling mill roll neck and slowdown device,animal anatomy,relay,Antenna Potentials,power source,Material handling equipment,laser devices,Spectrum Products,Gas turbine,tube,security equipment
Similar models:71821 ACD/HCP4 71821 CD/HCP4 71821 ACD/P4 71821 CD/P4
BEARING POWER International Trading Co.,Ltd. specialize in 71821ACD/HCP4 products，there is large inventory of SKF 71821 ACD/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 71821 ACD/HCP4 Which SKF 71821ACD/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
32014 X/DF	70	110	-	Bearings, units and housings
7014 CE/HCP4AL	70	110	20	Bearings, units and housings
IR 85x95x36	85	95	36	Bearings, units and housings
NJ 2220 ECML	100	180	46	Bearings, units and housings
NNF 5038 ADA-2LSV	190	290	136	Bearings, units and housings
NNU 4960 B/SPW33	300	420	118	Bearings, units and housings
PWKRE 35.2RS	-	35	52	Bearings, units and housings
S71902 ACD/P4A	15	28	7	Bearings, units and housings
SCF 60 ES	60	-	44	Bearings, units and housings
SNL 3152 TURT	240	-	-	Bearings, units and housings
W 628-2RZ	8	24	8	Bearings, units and housings
YSA 208-2FK + H 2308	40	80	33.9	Bearings, units and housings

Purchase the SKF 71821 ACD/HCP4 Please fill in the following

Hot number： 12660 330862 B 408703 529490 609-2RSH 618/1120 TN 71907 ACB/P4A 71984 BM BT2B 334152/HA3 FSYE 2 1/2-3 N 28/900 MB NNU 4921 B/SPW33 S7200 CD/HCP4A SAFS 22515 TLC W 619/9-2RS1