ball and roller bearings - NTN Bearing Corporation of America

58
SERIES
12
12K
Cylindrical
Bore
12
Tapered Bore
12K
Taper 1:12
Units: INCHES
Millimeters
SELF-ALIGNING BALL BEARINGS
Bearing No. Bore O.D. Width
Fillet
Radius
Basic Load
Ratings (lbs)
Weight (lbs)
Limiting Speeds
(rpm)
Dynamic Static Grease Oil
12 12K d D B r C C0 12 12K
1200 — 0.3937 1.1811 0.3543 0.024 1,230 268 .075 — 21,000 24,000
10 30 9 0.6
1201 — 0.4724 1.2598 0.3937 0.024 1,260 286 .088 — 18,000 22,000
12 32 10 0.6
1202 — 0.5906 1.3780 0.4331 0.024 1,680 395 .108 — 16,000 19,000
15 35 11 0.6
1203 — 0.6693 1.5748 0.4724 0.024 1,770 450 .161 — 14,000 17,000
17 40 12 0.6
1204 1204K 0.7874 1.8504 0.5512 0.039 2,230 585 .265 .26 13,000 15,000
20 47 14 1.0
1205 1205K 0.9843 2.0472 0.5906 0.039 2,720 740 .311 .304 11,000 13,000
25 52 15 1.0
1206 1206K 1.1811 2.4409 0.6299 0.039 3,500 1,050 .485 .476 9,200 11,000
30 62 16 1.0
1207 1207K 1.3780 2.8346 0.6693 0.043 3,550 1,150 .712 .699 8,000 9,400
35 72 17 1.1
1208 1208K 1.5748 3.1496 0.7087 0.043 4,350 1,470 .919 .906 7,100 8,400
40 80 18 1.1
1209 1209K 1.7717 3.3465 0.7480 0.043 4,900 1,650 1.03 1.01 6,400 7,500
45 85 19 1.1
1210 1210K 1.9685 3.5433 0.7874 0.043 5,100 1,820 1.16 1.14 5,800 6,800
50 90 20 1.1
1211 1211K 2.1654 3.9370 0.8268 0.059 6,000 2,250 1.55 1.53 5,300 6,200
55 100 21 1.5
1212 1212K 2.3622 4.3307 0.8661 0.059 6,800 2,590 1.98 1.95 4,900 5,800
60 110 22 1.5
1213 1213K 2.5591 4.7244 0.9055 0.059 6,950 2,820 2.54 2.49 4,500 5,300
65 120 23 1.5
1214 — 2.7559 4.9213 0.9449 0.059 7,800 3,100 2.78 — 4,200 4,900
70 125 24 1.5
1215 1215K 2.9528 5.1181 0.9843 0.059 8,750 3,550 3 2.95 3,900 4,600
75 130 25 1.5
1216 1216K 3.1496 5.5118 1.0236 0.079 8,950 3,800 3.68 3.62 3,700 4,300
80 140 26 2
1217 1217K 3.3465 5.9055 1.1024 0.079 11,000 4,650 4.56 4.5 3,500 4,100
85 150 28 2
1218 1218K 3.5433 6.2992 1.1811 0.079 12,800 5,300 5.56 5.47 3,300 3,800
90 160 30 2
1219 1219K 3.7402 6.6929 1.2598 0.083 14,300 6,100 6.83 6.72 3,100 3,600
95 170 32 2.1
1220 1220K 3.9370 7.0866 1.3386 0.083 15,500 6,700 8.16 8.02 2,900 3,400
100 180 34 2.1
1221 — 4.1339 7.4803 1.4173 0.083 16,700 7,300 9.63 — 2,800 3,300
105 190 36 2.1
1222 1222K 4.3307 7.8740 1.4961 0.083 18,100 7,950 11.4 11.2 2600 3100
110 200 38 2.1
The d dimension for the tapered bore is measured from the side of the bearing with the smallest bore dimension.