CylindriCal and Tapered roller Bearings
Bower Cylindrical and Tapered Roller Bearings - NTN Bearing
Bower Cylindrical and Tapered Roller Bearings - NTN Bearing
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Cylindrical Roller <strong>Bearings</strong><br />
Basic<br />
Bore<br />
Diameter<br />
AFBMA/ANSI A<br />
Dimensional Tolerances<br />
Inner Ring<br />
B<br />
Mean<br />
Bore Diameter Tolerances*<br />
Out of Roundness<br />
Diameter Series<br />
Radial<br />
Runout<br />
900 000<br />
200<br />
300<br />
Inch/mm<br />
.0001 Inch/Micrometres<br />
Over Incl. Low High<br />
High Low<br />
Max. Max. Max. Max. High Low<br />
0.7087 1.1811 + 0-4 + 0-4<br />
5 4 3 5 + 0 -47<br />
18.000 30.000 + -10 0<br />
+ -10 0 13 10 8 13 + 0 -120<br />
1.1811 1.9685 + -4.5 0<br />
+ -4.5 0 6 4.5 3.5 6 + 0 -47<br />
30.000 50.000 + -12 0<br />
+ -12 0 15 12 9 15 + 0 -120<br />
1.9685 3.1496 + 0-6 + 0-6<br />
7.5 7.5 4.5 8 + 0 -59<br />
50.000 80.000 + -15 0<br />
+ -15 0 19 19 11 20 + 0 -150<br />
3.1496 4.7244 + 0-8 + 0-8<br />
10 10 6 10 + 0 -79<br />
80.000 120.000 + -20 0<br />
+ -20 0 25 25 15 25 + 0 -200<br />
4.7244 7.0866 + -10 0<br />
+ -10 0 12 12 7.5 12 + 0 -98<br />
120.000 180.000 + -25 0<br />
+ -25 0 31 31 19 30 + 0 -250<br />
7.0866 9.8425 + -12 0<br />
+ -12 0 15 15 9 16 + 0 -118<br />
180.000 250.000 + -30 0<br />
+ -30 0 38 38 23 40 + 0 -300<br />
9.8425 12.4015 + -14 0<br />
+ -14 0 17 17 10 20 + 0 -138<br />
250.000 315.000 + -35 0<br />
+ -35 0 44 44 26 50 + 0 -350<br />
12.4015 15.7480 + -16 0<br />
-16 0 20 20 12 24 + 0 -157<br />
315.000 400.000 + -40 0<br />
-40 0 50 50 30 60 + 0 -400<br />
* B Mean represents the Mean Bore Diameter Tolerance.<br />
Out of Roundness represents the Maximum Bore Diameter Variation in a single radial plane.<br />
Outer Ring<br />
Outside Diameter Tolerances**<br />
Out of Roundness<br />
Basic<br />
Bearing Wwith<br />
Radial Width<br />
Outside<br />
D<br />
Open Bearing<br />
Internal Snap<br />
Runout Limits<br />
Diameter<br />
Mean<br />
Rrings<br />
Diameter Series<br />
900 000 200/300 200/300<br />
Inch/mm<br />
.0001 Inch/Micrometres<br />
Over Incl. High Low High Low<br />
Max. Max. Max. Max. Max. High/Low<br />
1.1811 1.9685 -4.5 +0<br />
-4.5 +0 5.5 4.5 3 6.5 8<br />
30.000 50.000 +0 -11 +0 -11<br />
14 11 8 16 20<br />
1.9685 3.1496 +0-5 +0-5<br />
6.5 5 4 8 10<br />
50.000 80.000 +0 -13 +0 -13<br />
16 13 10 20 25<br />
3.1496 4.7244 +0-6 +0-6<br />
7.5 7.5 4.5 10 14<br />
80.000 120.000 +0 -15 +0 -15<br />
19 19 11 26 35<br />
4.7244 5.9055 +0-7 +0-7<br />
9 9 5.5 12 16 Same as<br />
120.000 150.000 +0 -18 +0 -18<br />
23 23 14 30 40<br />
Inner Ring<br />
5.9055 7.0866 +0 -10 +0 -10<br />
12 12 7.5 15 18<br />
150.000 180.000 +0 -25 +0 -25<br />
31 31 19 38 45<br />
of the<br />
Same<br />
7.0866 9.8425 +0 -12 +0 -12<br />
15 15 9 — 20<br />
180.000 250.000 +0 -30 +0 -30<br />
38 38 23 — 50 Bearing<br />
9.8425 12.4015 +0 -14 +0 -14<br />
17 17 10 — 24<br />
250.000 315.000 +0 -35 +0 -35<br />
44 44 26 — 60<br />
12.4015 15.7480 +0 -16 +0 -16<br />
20 20 12 — 28<br />
315.000 400.000 +0 -40 +0 -40<br />
50 50 30 — 70<br />
15.7480 19.6850 +0 -18 +0 -18<br />
22 22 13 — 31<br />
400.000 500.000 +0 -45 +0 -45<br />
56 56 34 — 80<br />
** D Mean represents the Mean Outside Diameter Tolerance.<br />
Out of Roundness represents the Maximum Outside Diameter Variation in a single radial plane.<br />
Width<br />
Limits<br />
80
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