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Ball and Roller Bearings - Ntn-snr.com

Ball and Roller Bearings - Ntn-snr.com

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Multi-Row Tapered <strong>Roller</strong> <strong>Bearings</strong><br />

Outward facing type<br />

B1<br />

C<br />

r1<br />

r<br />

D<br />

d<br />

a<br />

d 500mm<br />

Boundary dimensions Basic load ratings Limiting speeds<br />

dynamic static dynamic static<br />

mm kN kgf rpm<br />

1<br />

1<br />

d D B 1 C r s min r 1s min C r C or C r C or grease oil<br />

500<br />

720 167 149 6 3 2,610 5,400 266,000 550,000 320 420<br />

720 209 167 6 3 3,050 6,900 315,000 700,000 320 420<br />

830 264 235 7.5 4 5,200 10,500 530,000 1,070,000 290 390<br />

830 330 264 7.5 4 6,400 14,000 650,000 1,420,000 290 390<br />

1 Minimum allowable dimension for chamfer dimension r or r1.<br />

B-206

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