SKF NNU 4968 BK/SPW33 Cylindrical roller bearings, double row, super-precision

SKF NNU 4968 BK/SPW33 Cylindrical roller bearings, double row, super-precision
Cylindrical roller bearings, double row, super-precision

Tolerances: SP, UP, SP and UP for 1:12 tapered bore, Chamfer dimensionsRadial internal clearance: tableRecommended shaft and housing fits: shafts, housingsValues for ISO tolerance classes: shafts, housingsSpeed dependent initial grease fill → Initial grease fill

d		340	mm
D		460	mm
B		118	mm
D1		419	mm
F		379	mm
b		16.7	mm
K		9	mm
r1,2	min.	3	mm
r3,4	min.	1.5	mm
s	max.	5.5	mm

Tapered bore, taper 1:12

Abutment dimensions

da	min.	353	mm
da	max.	375	mm
Da	max.	447	mm
ra	max.	2.5	mm

Calculation data

Basic dynamic load rating	C		1100	kN
Basic static load rating	C0		2650	kN
Fatigue load limit	Pu		245	kN
Attainable speed for grease lubrication			1500	r/min
Attainable speed for oil-air lubrication			1700	r/min

Mass

Mass bearing

56

kg

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