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PRODUCTS
R minitype series


Pr = XFr + YFa
Fa
---
Cor
e
Fa
---
Cor
=e
Fa
---
Cor
>e
x
y
x
y
0.010
0.020
0.040
0.070
0.10
0.15
0.20
0.30		 0.18
0.20
0.24
0.27
0.29
0.32
0.35
0.38		 1 0
0.56
2.46
2.14
1.83
1.61
1.48
1.35
1.25
1.13
Por = 0.6Fr + 0.5Fa
When Por r, Let Por = Fr

Bearing accuracy
Bearing accurany refers to accuracy on and rotation. According to chinese national standard, the bearing accuracy is divided into five classes: Class 0, Class 6, Class 5, Class 4 and Class 2. All of them are equivalent to ISO standard.The comparison of different accuracy classes are shown as follows:
Comparison table of accuracy grade
Standard
Accuracy Grade
GB
ISO
ANSI
SKF
DIN
JIS		 0
0
ABEC1
PO
PO
0		 6
6
ABEC3
P6
P6
6		 5
5
ABEC5
P5
P5
5		 4
4
ABEC7
P4
P4
4		 2
2
ABEC9
P2
P2
2

Main size(mm)
Load rating(N)
Maxronout speed (rpm)
Bearing No.
Fixing size(mm)
 Weight(kg)
d
D
B
 B1 D1 C1 C2 rsmin1) Cr Cor
Grease
Oil Open
Z
 ZZ FL FL...Z FL...ZZ Ds dh
R
 Open FL
1.016 3.175 1.191
-
-
-
-
 0.08 97 26 110000 130000 R01
-
-
-
-
-
 1.6 2.5 0.08 0.04
-
1.191 3.967 1.588 2.380 5.16 0.33 0.79 0.08 159 44 93000 110000 R0 R0Z R0ZZ FLR0 FLR0Z FLR0ZZ
2
 3.2 0.08 0.09 0.11
1.397 4.762 1.984 2.779 5.94 0.58 0.79 0.08 185 56 81000 95000 R1 R1Z R1ZZ FLR1 FLR1Z FLR1ZZ 2.2 3.8 0.08 0.17 0.21
1.984 6.350 2.380 3.571 7.52 0.58 0.79 0.08 279 89 67000 79000 R1-4 R1-4Z R1-4ZZ FLR1-4 FLR1-4Z FLR1-4ZZ 2.8 5.5 0.08 0.35 0.41
2.380 4.762 1.588 2.380 5.94 0.46 0.79 0.08 124 42 73000 85000 R133 R133Z R133ZZ FLR133 FLR133Z FLR133ZZ 3.2
4
 0.08 0.12 0.16
7.938 2.779 3.571 9.12 0.58 0.79 0.13 430 152 56000 66000 R1-5 R1-5Z R1-5ZZ FLR1-5 FLR1-5Z FLR1-5ZZ 3.2
7
 0.1 0.69 0.76
3.175 6.350 2.380 2.779 7.52 0.58 0.79 0.08 284 96 59000 70000 R144 R144Z R144ZZ FLR144 FLR144Z FLR144ZZ
4
 5.5 0.08 0.27 0.33
7.938 2.779 3.571 9.12 0.58 0.79 0.08 560 180 54000 63000 R2-5 R2-5Z R2-5ZZ FLR2-5 FLR2-5Z FLR2-5ZZ
4
7
 0.08 0.61 0.68
9.525 2.779 3.571 10.72 0.58 0.79 0.13 640 224 49000 58000 R2-6 R2-6Z R2-6ZZ FLR2-6 FLR2-6Z FLR2-6ZZ
4
 8.7 0.1 0.88 0.96
9.525 3.967 3.967 11.18 0.76 0.76 0.3 640 224 49000 58000 R2 R2Z R2ZZ FLR2 FLR2Z FLR2ZZ 4.8 7.8 0.3 1.3 1.5
12.700 4.366 4.366
-
-
-
 0.3 1150 395 43000 51000 R2 R2Z R2ZZ
-
-
-
 4.8 11 0.3 2.5
-
3.967 7.938 2.779 3.175 9.12 0.58 0.91 0.08 335 133 51000 60000 R155 R155Z R155ZZ FLR155 FLR155Z FLR155ZZ 4.8
7
 0.08 0.54 0.61
4.762 7.938 2.779 3.175 9.12 0.58 0.91 0.08 395 143 49000 58000 R156 R156Z R156ZZ FLR156 FLR156Z FLR156ZZ 5.6
7
 0.08 0.44 0.51
9.525 3.175 3.175 10.72 0.58 0.79 0.08 710 268 46000 55000 R166 R166Z R166ZZ FLR166 FLR166Z FLR166ZZ 5.6 8.7 0.08 0.80 0.89
12.700 3.967
-
-
-
-
 0.3 1310 490 41000 48000 R3
-
-
-
-
-
 6.4 11 0.3 2.2
-
12.700 4.978 4.978 14.35 1.07 1.07 0.3 1310 490 41000 48000 R3 R3Z R3ZZ FLR3 FLR3Z FLR3ZZ 6.4 11 0.3 2.4 2.7
6.350 9.525 3.175 3.175 10.72 0.58 0.91 0.08 268 136 43000 51000 R168 R168Z R168ZZ FLR168 FLR168Z FLR168ZZ 7.2 8.7 0.08 0.60 0.69
12.700 3.175 4.762 13.89 0.58 1.14 0.13 830 370 39000 46000 R188 R188Z R188ZZ FLR188 FLR188Z FLR188ZZ 7.2 11.8 0.1 1.6 1.7
15.875 4.978 4.978 17.53 1.07 1.07 0.3 1480 615 36000 43000 R4 R4Z R4ZZ FLR4 FLR4Z FLR4ZZ
8
 14.2 0.3 4.4 4.8
19.050
-
 7.142
-
-
-
 0.41 2340 885 34000 40000
-
 RA4Z RA4ZZ
-
-
-
 8.4 17 0.4 112)
-
9.525 22.225
-
 7.142 24.61
-
 1.57 0.41 3300 1400 31000 37000
-
 R6Z R6ZZ
-
-
-
-
 20.2 0.4 142) 152)
Attention:1)The minimum size for r.
 1N=0.102kgf
 2)The weight of bearing with dustproof two sides.
 
 
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