7021 ACD/HC

7021 ACD/HC

Cập nhật cuối lúc 13:28 ngày 07/02/2106, Đã xem 347 lần

Liên hệ

Model: 7021 ACD/HC

Hãng sản xuất: SKF

Bảo hành: 12 tháng

Tình trạng: Liên hệ

Số lượng

Dimensions

Abutment dimensions

Calculation data

Basic dynamic load rating	C	90.4	kN
Basic static load rating	C₀	93	kN
Fatigue load limit	P_u	3.4	kN
Attainable speed for grease lubrication		9000	r/min
Attainable speed for oil-air lubrication		14000	r/min
Contact angle	α	25	°
Ball diameter	D_w	17.462	mm
Number of balls	z	21
Reference grease quantity	G_ref	20.4	cm³
Preload and stiffness (back-to-back, face-to-face)
Preload class A	G_A	560	N
Static axial stiffness, preload class A		309	N/µm
Preload class B	G_B	1120	N
Static axial stiffness, preload class B		405	N/µm
Preload class C	G_C	2240	N
Static axial stiffness, preload class C		537	N/µm
Preload class D	G_D	4480	N
Static axial stiffness, preload class D		727	N/µm
Calculation factors
Calculation factor	f	1.15
Calculation factor	f₁	0.99
Calculation factor	f_2A	1
Calculation factor	f_2B	1.02
Calculation factor	f_2C	1.05
Calculation factor	f_2D	1.08
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