ijk_catalog.pdf - 第25页

25 MA TERIAL TOLERAN CE Radial Inter nal Cl earance in Single Row Dee p Groove Ball Bearings u nder No Load values in 0. 001mm values in 0. 001 inch C Si Mn P S Cr Mo 0.9 5 0.1 5 Max Max Max 1.3 ～1 .10 ～0 .35 ～0 .5 ～0.0 …

100%1 / 27
24
CONTROL BEARINGS
※The products on this page are non plating.
※DD teflon seal.
BASIC
INNER RING OUTER RING
BEARING WIDTH WIDTH DYNAMIC STATIC
NUMBER d D Bi Bo r min C Co
(mm/inch) (mm/inch) (mm/inch) (mm/inch) (mm/inch) (Kgf/N) (Kgf/N)
B538 15.875 26.988 7.14 6.35 0.38 1487 680
B538DDX 0.6250 1.0625 0.2811 0.2500 0.015 14600 6700
B539 19.05 30.162 7.14 6.35 0.38 1701 771
B539DDX 0.7500 1.1875 0.2811 0.2500 0.015 16700 7600
B540 22.225 33.338 7.14 6.35 0.38 1914 862
B540DDX 0.8750 1.3125 0.2811 0.2500 0.015 18800 8500
B541 26.988 38.1 7.14 6.35 0.38 2268 998
B541DDX 1.0625 1.5000 0.2811 0.2500 0.015 22200 9800
B542 33.338 44.45 7.14 6.35 0.38 2699 1225
B542DDX 1.3125 1.7500 0.2811 0.2500 0.015 26500 12000
B543 39.688 50.8 7.14 6.35 0.38 3121 1452
B543DDX 1.5625 2.0000 0.2811 0.2500 0.015 30600 14200
BORE
O.D.
CHAMFER
Basic Load Ratings
25
MATERIAL
TOLERANCE
Radial Internal Clearance in Single Row Deep Groove Ball Bearings under No Load
values in 0.001mm
values in 0.001 inch
C Si Mn P S Cr Mo
0.95 0.15 Max Max Max 1.3
～1.10 ～0.35 ～0.5 ～0.025 ～0.025 ～1.6
0.95 Max Max Max Max 16 Max
1.2 1 1 ～0.04 ～0.03 ～18 ～0.75
Similar steel
Symbol
-
AISI52100
SUJ2
Chemical composition
SUS440C
AISI440C
JIS0 JIS6 JIS5 JIS4
ABEC1 ABEC3 ABEC5 ABEC7
P0 P6 P5 P4
Normal Class6 Class5 Class4
ISO492
JIS
ANSI/ABMA Std.20
DIN620
over incl
Low High Low High Low High Low High
10 - 7 2 13 8 23 14 29
10 18 - 9 3 18 11 25 18 33
18 24 - 10 5 20 13 28 20 36
24 30 - 11 5 20 13 28 23 41
30 40 - 11 6 20 15 33 28 46
40 50 - 11 6 23 18 36 30 51
50 65 - 15 8 28 23 43 38 61
C2
Nominal Bore Diameter
d (mm)
Normal
C3
C4
Radial Internal Clearance
over incl
Low High Low High Low High Low High
0.393701 - 0.28 0.08 0.51 0.31 0.91 0.55 1.14
0.393701 0.708661 - 0.35 0.12 0.71 0.43 0.98 0.71 1.30
0.708661 0.944882 - 0.39 0.20 0.79 0.51 1.10 0.79 1.42
0.944882 1.181102 - 0.43 0.20 0.79 0.51 1.10 0.91 1.61
1.181102 1.574803 - 0.43 0.24 0.79 0.59 1.30 1.10 1.81
1.574803 1.968504 - 0.43 0.24 0.91 0.71 1.42 1.18 2.01
1.968504 2.559055 - 0.59 0.31 1.10 0.91 1.69 1.50 2.40
Nominal Bore Diameter
d (inch)
Radial Internal Clearance
C2
Normal
C3
C4
26
Radial Internal Clearances in Self-Aligning Ball Bearings with Cylindrical Bore under No Load
values in 0.001mm
values in 0.001inch
Radial Internal Clearance in Magneto Bearings under No Load
values in 0.001mm values in 0.001inch
over incl
Low High Low High Low High Low High
2.5 6 1 5 5 10 10 15 15 21
6 10 2 6 6 12 12 19 19 27
10 14 2 6 6 13 13 21 21 30
14 18 3 8 8 15 15 23 23 32
18 24 4 10 10 17 17 25 25 34
24 30 5 11 11 19 19 29 29 40
30 40 6 13 13 23 23 34 34 46
40 50 6 14 14 25 25 37 37 50
50 65 7 16 16 30 30 45 45 65
Radial Internal Clearance
C2
Normal
C3
C4
Nominal Bore Diameter
d (mm)
over incl
Low High Low High Low High Low High
0.0984 0.2362 0.04 0.20 0.20 0.39 0.39 0.59 0.59 0.83
0.2362 0.3937 0.08 0.24 0.24 0.47 0.47 0.75 0.75 1.06
0.3937 0.5512 0.08 0.24 0.24 0.51 0.51 0.83 0.83 1.18
0.5512 0.7087 0.12 0.31 0.31 0.59 0.59 0.91 0.91 1.26
0.7087 0.9449 0.16 0.39 0.39 0.67 0.67 0.98 0.98 1.34
0.9449 1.1811 0.20 0.43 0.43 0.75 0.75 1.14 1.14 1.57
1.1811 1.5748 0.24 0.51 0.51 0.91 0.91 1.34 1.34 1.81
1.5748 1.9685 0.24 0.55 0.55 0.98 0.98 1.46 1.46 1.97
1.9685 2.5591 0.28 0.63 0.63 1.18 1.18 1.77 1.77 2.56
C3
C4
Radial Internal Clearance
C2
Normal
Nominal Bore Diameter
d (inch)
over incl over incl Low High Low High
2.5 30 0.10 1.18 30 60 11.8 23.6
values in 0.001mm
Radial Internal Clearance
inch
mm
Nominal Bore Diameter
values in 0.001 inch