Page 216 - needle bearings

Needle roller bearings with three-point contact ball bearing
NTN

Type NKIB 59

d 15ʙ70mm

Boundary dimensions Basic load ratings Limiting
dynamic static dynamic static dynamic static dynamic static dimensions
mm N kgf N kgf r/min
d D B C F rs min 1) Radial Axial grease oil
–0
–0.3 Cr Cor Cr Cor Ca Coa Ca Coa
15 28 20 18 20 0.3 10 800 13 600 1 100 1 390 2 750 4 200 280 430 13 000 20 000

17 30 20 18 22 0.3 11 200 14 600 1 140 1 490 2 960 4 900 300 495 12 000 18 000
20 37 25 23 25 0.3 21 300 25 500 2 170 2 600 4 650 7 400 475 755 11 000 16 000
22 39 25 23 28 0.3 23 200 29 300 2 360 2 990 5 000 8 650 510 880 9 500 14 000
25 42 25 23 30 0.3 24 000 31 500 2 450 3 200 5 150 9 250 525 945 8 500 13 000

30 47 25 23 35 0.3 25 500 35 500 2 600 3 600 5 600 11 200 570 1 140 7 500 11 000
35 55 30 27 42 0.6 32 000 50 000 3 300 5 100 7 050 14 900 720 1 520 6 500 9 500
40 62 34 30 48 0.6 43 500 66 500 4 450 6 800 8 700 19 400 890 1 980 5 500 8 500
45 68 34 30 52 0.6 46 000 73 000 4 700 7 450 9 100 21 400 925 2 180 5 000 7 500

50 72 34 30 58 0.6 48 000 80 000 4 900 8 150 9 600 24 300 980 2 480 4 300 6 500
55 80 38 34 63 1 58 500 99 500 6 000 10 100 11 400 29 400 1 170 3 000 4 300 6 500
60 85 38 34 68 1 61 500 108 000 6 250 11 000 11 800 32 000 1 200 3 250 4 000 6 000
65 90 38 34 72 1 62 500 112 000 6 350 11 400 12 100 34 000 1 240 3 500 3 700 5 500

70 100 45 40 80 1 85 500 156 000 8 750 15 900 15 900 44 500 1 620 4 550 3 300 5 000

Note 1) Allowable minimum chamfer dimension r.
Remarks: 1. This complex can support bi-directional axial load.
2. The ball bearing of this complex bearing is complete with a synthetic resin cage, and the allowable operating temperature shall be 120˚C and, under continuous running, 100˚C or less.
3. This bearing type is the imported product from INA, Germany.
B-154