KR30-NMT INA Catalog

Yoke type track roller KR..-B, with cage, with axial guidance, no eccentric

D	Outside diameter	30 mm
d1	Fit diameter of roller stud / stud	12 mm
B	Width of the roller stud	40 mm
Cr w	Basic dynamic load rating, radial	6.800 N
C0r w	Basic static load rating, radial	8.700 N
Cur w	Fatigue load limit, radial	1.240 N
nD G	Speed on permanent grease lubrication	5.500 1/min
≈m	Weight	0,103 kg
B1	Maximum witdh of thrust washer	15,2 mm
B2	Bolt/stud length effectively	25 mm
B3	Distance to lubrication hole	6 mm
C	Width, outer ring	14 mm
C1	Protrusion outer ring to thrust washer	0,6 mm
rmin	Minimum chamfer dimension	0,6 mm
d2	Stop diameter of thrust washer	23 mm
d3	Diameter lubrication hole	3 mm
G	Thread	M12X1,5
IG	Thread length	13 mm
W	Width of flats	6 mm
R	Radius of outer ring outside profile	500 mm
MA	Tightening torque nut	22 Nm
Sealing	Gap seal on both sides
Outer Ring profile	R500
Grease nipples	Drive-fit lubrication nipple unmounted 2x
Relubrication feature	Via head, stud and fit
Assembling aid head	Hexagon socket
Mounting aid stud	Hexagon socket
Special Shape	Unmounted nut and drive-fit lubrication nipple	NMT