Ball and Roller Bearings - Ntn-snr.com

High Speed Single and Duplex Arrangements
r
B
r
B
ra
r
r
ra
D
d
Da
da
a
a
a
a
d 1040mm
Single
Back-to-back
arrangement
(DB)
Face-to-face
arrangement
(DF)
Tandem
arrangement
(DT)
Boundary dimensions Basic load ratings Limiting speeds 1 Bearing Load Mass
dynamic static dynamic static numbers center
kg
mm kN kgf rpm mm
single
2 2
d D B B r s min rls min C r C or C r C or grease oil a approx.
10
12
15
17
20
25
30
35
40
26 8 16 0.3 0.15 4.90 2.20 500 225 43,000 58,000 7000C 6.5 0.019
30 9 18 0.6 0.3 5.40 2.64 555 269 41,000 55,000 7200C 7 0.029
28 8 16 0.3 0.15 5.40 2.64 555 269 39,000 52,000 7001C 6.5 0.021
32 10 20 0.6 0.3 7.10 3.45 720 355 36,000 49,000 7201C 8 0.036
32 9 18 0.3 0.15 6.25 3.40 635 345 34,000 45,000 7002C 7.5 0.029
35 11 22 0.6 0.3 9.00 4.50 915 460 32,000 42,000 7202C 9 0.045
42 13 26 1 0.6 13.30 6.85 1,360 700 28,000 38,000 7302C 10.5 0.081
35 10 20 0.3 0.15 7.70 4.10 785 420 31,000 41,000 7003C 8.5 0.038
40 12 24 0.6 0.3 11.2 5.75 1,140 590 29,000 38,000 7203C 10 0.062
47 14 28 1 0.6 15.7 8.25 1,600 840 26,000 35,000 7303C 11.5 0.109
42 12 24 0.6 0.3 10.5 6.05 1,070 615 27,000 36,000 7004C 10 0.066
47 14 28 1 0.6 14.6 8.15 1,490 835 25,000 34,000 7204C 11.5 0.1
52 15 30 1.1 0.6 18.5 9.95 1,890 1,020 23,000 31,000 7304C 12.5 0.14
37 7 14 0.3 0.15 5.05 3.85 515 390 27,000 36,000 7805C 7.5 0.021
42 9 18 0.3 0.15 7.85 5.40 800 555 25,000 33,000 7905C 9 0.042
47 12 24 0.6 0.3 11.7 7.45 1,190 755 23,000 31,000 7005C 11 0.078
52 15 30 1 0.6 16.6 10.2 1,690 1,050 21,000 28,000 7205C 12.5 0.121
62 17 34 1.1 0.6 26.4 15.3 2,690 1,560 19,000 26,000 7305C 14.5 0.222
42 7 14 0.3 0.15 5.35 4.50 545 460 23,000 31,000 7806C 8.5 0.025
47 9 18 0.3 0.15 8.30 6.25 845 640 21,000 28,000 7906C 9.5 0.048
55 13 26 1 0.6 15.1 10.3 1,540 1,050 20,000 26,000 7006C 12.5 0.112
62 16 32 1 0.6 23.0 14.7 2,350 1,500 18,000 24,000 7206C 14 0.191
72 19 38 1.1 0.6 32.5 20.3 3,300 2,070 16,000 22,000 7306C 16.5 0.33
47 7 14 0.3 0.15 5.80 5.25 590 535 20,000 27,000 7807C 9 0.028
55 10 20 0.6 0.3 13.2 9.65 1,340 985 19,000 25,000 7907C 11 0.073
62 14 28 1 0.6 19.1 13.7 1,950 1,390 17,000 23,000 7007C 13.5 0.149
72 17 34 1.1 0.6 30.5 19.9 3,100 2,030 16,000 21,000 7207C 15.5 0.273
80 21 42 1.5 1 40.5 25.8 4,100 2,630 14,000 19,000 7307C 18 0.44
52 7 14 0.3 0.15 6.05 5.75 615 585 18,000 24,000 7808C 9.5 0.031
62 12 24 0.6 0.3 14.0 11.1 1,420 1,140 17,000 22,000 7908C 13 0.109
68 15 30 1 0.6 20.6 15.9 2,100 1,620 15,000 21,000 7008C 14.5 0.184
80 18 36 1.1 0.6 36.5 25.2 3,700 2,570 14,000 19,000 7208C 17 0.35
1 This value was achieved with laminated phenol resin machined cages; in the case of molded resin cages,with oil lubricant, the value will be 75% of this.
2 Minimal allowable dimension for chamfer dimension r or r1.
B-56