SKF BTW 40 CTN9/SP Angular contact thrust ball bearings, double direction, super-precision

SKF BTW 40 CTN9/SP Angular contact thrust ball bearings, double direction, super-precision
Angular contact thrust ball bearings, double direction, super-precision

Tolerances: P4C, SP, UP, Chamfer dimensionsRecommended shaft and housing fits: shafts, housingsValues for ISO tolerance classes: shafts, housingsSpeed dependent initial grease fill → Initial grease fill

d		40	mm
D		68	mm
H		36	mm
d1		56.4	mm
2C		18	mm
r1,2	min.	1	mm
r3,4	min.	0.3	mm

Abutment dimensions

da	min.	50	mm
Da	min.	63.4	mm
Da	max.	64	mm
ra	max.	1	mm
rb	max.	0.3	mm

Calculation data

Basic dynamic load rating	C		19.5	kN
Basic static load rating	C0		46.5	kN
Fatigue load limit	Pu		2.24	kN
Attainable speed for grease lubrication			10000	r/min
Attainable speed for oil-air lubrication			13000	r/min
Preload			360	N
Static axial stiffness			481	N/µm
Reference grease quantity	Gref		2.5	cm³

Mass

Mass bearing

0.42

kg

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