Page 103 - needle bearings

Drawn cup needle roller bearings
NTN

C
C

C1
C1

ПD
ПFW
ПD ПFW

Type BK
Type BKʝZWD
Closed End Type

FW ʙ NN

Boundary dimensions Basic load ratings Limiting speeds Bearing numbers Mass Appropriate 1)
dynamic static dynamic static inner ring
mm N kgf r/min kg
Fw D C C1 grease oil open end closed end
0 max
-0.2 Cr Cor Cr Cor design design (approx.) (as a reference)
30 40 30 ʕ 36 000 57 500 3 700 5 850 5 500 8 000 HMK3030 ʕ 0.087 IR25ʷ30ʷ32

42 20 ʕ 27 500 38 000 2 800 3 850 5 000 7 500 HMK3220 ʕ 0.062 ʕ
32
42 30 ʕ 41 500 64 500 4 250 6 550 5 000 7 500 HMK3230 ʕ 0.092 ʕ
42 12 ʕ 14 000 22 800 1 430 2 320 4 700 7 000 HK3512 ʕ 0.028 ʕ
42 12 2.7 14 000 22 800 1 430 2 320 4 700 7 000 ʕ BK3512 0.033 ʕ
42 16 ʕ 19 700 35 000 2 000 3 600 4 700 7 000 HK3516 ʕ 0.037 ʕ
42 16 2.7 19 700 35 000 2 000 3 600 4 700 7 000 ʕ BK3516 0.044 ʕ
42 20 ʕ 24 800 47 500 2 530 4 850 4 700 7 000 HK3520 ʕ 0.046 ʕ
35 42 20 2.7 24 800 47 500 2 530 4 850 4 700 7 000 ʕ BK3520 0.055 ʕ
45 12 ʕ 14 900 17 600 1 520 1 800 4 700 7 000 HMK3512 ʕ 0.040 ʕ
45 15 ʕ 20 200 26 200 2 060 2 670 4 700 7 000 HMK3515 ʕ 0.050 ʕ
45 20 ʕ 28 400 40 500 2 890 4 100 4 700 7 000 HMK3520 ʕ 0.067 ʕ
45 25 ʕ 36 000 54 500 3 650 5 550 4 700 7 000 HMK3525 ʕ 0.083 ʕ
45 30 ʕ 43 000 69 000 4 400 7 000 4 700 7 000 HMK3530 ʕ 0.100 ʕ
47 20 ʕ 29 300 43 000 2 990 4 350 4 300 6 500 HMK3720 ʕ 0.070 ʕ
37
47 30 ʕ 44 500 73 000 4 550 7 450 4 300 6 500 HMK3730 ʕ 0.105 ʕ
48 15 ʕ 21 700 29 300 2 210 2 990 4 300 6 500 HMK3815 ʕ 0.054 ʕ
48 20 ʕ 30 500 45 000 3 100 4 600 4 300 6 500 HMK3820 ʕ 0.072 ʕ
38 48 25 ʕ 38 500 61 000 3 900 6 250 4 300 6 500 HMK3825 ʕ 0.090 ʕ
48 30 ʕ 46 000 77 000 4 700 7 850 4 300 6 500 HMK3830 ʕ 0.107 IR32ʷ38ʷ32
48 45 ʕ 62 000 113 000 6 300 11 500 4 300 6 500 HMK3845ZWD ʕ 0.161 ʕ

47 12 ʕ 15 100 26 000 1 540 2 660 4 000 6 000 HK4012 ʕ 0.031 IR35ʷ40ʷ12.5
47 12 2.7 15 100 26 000 1 540 2 660 4 000 6 000 ʕ BK4012 0.038 IR35ʷ40ʷ12.5
47 16 ʕ 21 100 40 000 2 150 4 100 4 000 6 000 HK4016 ʕ 0.041 IR35ʷ40ʷ17
47 16 2.7 21 100 40 000 2 150 4 100 4 000 6 000 ʕ BK4016 0.051 IR35ʷ40ʷ17
40 47 20 ʕ 25 900 52 500 2 650 5 350 4 000 6 000 HK4020 ʕ 0.052 IR35ʷ40ʷ20.5
47 20 2.7 25 900 52 500 2 650 5 350 4 000 6 000 ʕ BK4020 0.064 IR35ʷ40ʷ20.5
50 15 ʕ 23 100 32 500 2 350 3 300 4 000 6 000 HMK4015 ʕ 0.056 IR35ʷ40ʷ17
50 20 ʕ 32 500 50 000 3 300 5 100 4 000 6 000 HMK4020 ʕ 0.075 IR35ʷ40ʷ20.5
50 25 ʕ 41 000 67 500 4 150 6 900 4 000 6 000 HMK4025 ʕ 0.094 ʕ
Note 1) Bearing with inner ring is represented by HK+IR. (Refer to "Inner Ring Dimensions Table" on page B-121, B122.)
EX. HK4012 + IR35ʷ40ʷ12.5
B-41