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Open type
NTN Corporation
Ball and roller bearing
Miniature and Extra Small Ball Bearings
Inch system sizes
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{ntn/ball_roller_bearings/miniature_extra_small_bb/inch_system_sizes/iss_ot_asmtab.prj},{NB=RA2},{IDNR=},{SD=3.175},{D=12.700},{B=4.366},{B1=4.366},{D1=0.00},{D2=0.00},{C1=0.00},{C2=0.00},{R=0.30},{CR=1150},{COR=395},{CRF=117},{CORF=40},{LSG=43000},{LSO=51000},{MASS=2.50},{ORDER1=RA2},{WSS=RA2Z},{WDS=RA2ZZ},{UTWF=0},{FORSS=0},{FORDS=0},{DA1=4.8},{DA2=5.4},{DA=11},{RAS=0.3},{MASS1=0.00},{VERS=1},{PPATH=iss_asmtpl.prj}
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LINA
明細表
SD
Inside Diameter
[mm]
D
Outside Diameter
[mm]
B
Width
[mm]
R
Radius
[mm]
ORDER
Bearing No.
ⁿ/ₐ
CR
Basic load ratings
[N]
COR
Basic Static Load Ratings
[N]
CRF
Basic load ratings
[kgf]
CORF
Basic Static Load Ratings
[kgf]
LSG
Limiting Speeds (Grease)
[min^-1]
LSO
Limiting Speeds (Oil)
[min^-1]
MASS
mass
[kg]
R1-4
1.984
6.350
2.380
0.08
R1-4
279
89
28
9
67000
79000
0.35
R133
2.380
4.762
1.588
0.08
R133
124
42
13
4.5
73000
85000
0.12
R1-5
2.380
7.938
2.779
0.13
R1-5
430
152
44
16
56000
66000
0.69
R144
3.175
6.350
2.380
0.08
R144
284
96
29
10
59000
70000
0.27
R2-5
3.175
7.938
2.779
0.08
R2-5
560
180
57
18
54000
63000
0.61
R2-6
3.175
9.525
2.779
0.13
R2-6
640
224
65
23
49000
58000
0.88
R2
3.175
9.525
3.967
0.30
R2
640
224
65
23
49000
58000
1.30
RA2
3.175
12.700
4.366
0.30
RA2
1150
395
117
40
43000
51000
2.50
R155
3.967
7.938
2.779
0.08
R155
335
133
34
14
51000
60000
0.54
R156
4.762
7.938
2.779
0.08
R156
395
143
40
15
49000
58000
0.44
R166
4.762
9.525
3.175
0.08
R166
710
268
72
27
46000
55000
0.80
R3
4.762
12.700
3.967
0.30
R3
1310
490
134
50
41000
48000
2.20
RA3
4.762
12.700
4.978
0.30
RA3
1310
490
134
50
41000
48000
2.40
R168A
6.350
9.525
3.175
0.08
R168A
210
94
21
9.5
43000
51000
0.60
R188
6.350
12.700
3.175
0.13
R188
830
370
84
38
39000
46000
1.60
R4
6.350
15.875
4.978
0.30
R4
1480
615
151
63
36000
43000
4.40
Additional Information
建議
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