SKF NRT 650 A Axial-radial cylindrical roller bearings, super-precision

SKF NRT 650 A Axial-radial cylindrical roller bearings, super-precision
Axial-radial cylindrical roller bearings, super-precision

Tolerances: tablePermissible moment load: diagramAccuracy of seats and abutments: shaft seats, housing seats

d		650	mm
D		870	mm
H		122	mm
d1		800	mm
C		34	mm
H1		78	mm
J		680	mm
J1		830	mm
N		14	mm
N1		20	mm
N2		14	mm
a		13	mm
r1	min.	1	mm
r2	min.	1	mm

Calculation data

Basic dynamic load rating - radial direction	C		413	kN
Basic static load rating - radial direction	C0		1600	kN
Basic dynamic load rating - axial direction	C		365	kN
Basic static load rating - axial direction	C0		5000	kN
Attainable speed for grease lubrication			55	r/min
Attainable speed for oil-air lubrication			110	r/min
Axial preload			27	kN
Axial unloading force			59	kN
Frictional moment	CRL		200	N·m
Axial stiffness			60	kN/µm
Radial stiffness			17.2	kN/µm
Moment stiffness			3209	kN·m/mrad

Mass

Mass bearing

170

kg

Rotary table

Guideline diameter

1450

mm

Mounting information

Retaining bolts
Size			M12
Number of bolts			2
Angle between bolts			180	°
Removal threads
Size	G		M12
Number of threads			6
Angle between threads			60	°
Required attachment bolts, shaft
Bolt size			M12
Pitch	α		7.5	°
Number of bolts			46
Number of bolts omitted at retaining bolts position			2, 180° apart
Tightening torque (Bolt grade 10.9)			116	N·m
Required attachment bolts, housing
Bolt size			M12
Pitch	α		7.5	°
Number of bolts			42
Number of bolts omitted at removal thread position			6, 60° apart

<input type="hidden" name="moreInfoUrl" value="">