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Typically, GFR and GFRN are used with F series covers designed to transmit torque, provide oil lubrication, and ensure sealing. These covers are usually used in pairs, as shown in the combinations on the following pages. The outer race of the GFR model is plain, allowing it to fit and center any component bored to H7 tolerance.
Torque is transmitted through bolts in the cover plate in this case. GFR and GFRN are identical except that GFRN has a keyway on the outside diameter to transmit torque. Two paper seals are included with each unit, placed between the outer race and cover plates.
Parameters of China Manufacturing Wheel Barrow Wheel Bearing Gfrn40
Type
Size
Â
Overrunning speeds
Â
Number
Â
Weight
GFR
GFRNdH7
TKN1)
nimax2)
namax3)
Dh7
D2
D4
D3
G
t
z
L 1
L
B
t1
bP10
f
Â
[mm]
[Nm]
[min-1]
[min-1]
[mm]
[mm]
[mm]
[mm]
Â
[mm]
Â
[mm]
[mm]
[mm]
[mm]
[mm]
[mm]
[kg]
12*
55
4000
7200
62
20
42
51
ø5.5
-
3
42
20
27
2.5
4
0.5
0.5
15
125
3600
6500
68
25
47
56
M5
8
3
52
28
32
3
5
0.8
0.8
20
181
2700
5600
75
30
55
64
M5
8
4
57
34
39
3.5
6
0.8
1
25
288
2100
4500
90
40
68
78
M6
10
4
60
35
40
4
8
1
1.5
30
500
1700
4100
100
45
75
87
M6
10
6
68
43
48
4
8
1
2.2
35
725
1550
3800
110
50
80
96
M6
12
6
74
45
51
5
10
1
3
40
1025
1150
3400
125
55
90
108
M8
14
6
86
53
59
5
12
1.5
4.6
45
1125
1000
3200
130
60
95
112
M8
14
8
86
53
59
5.5
14
1.5
4.7
50
2125
800
2800
150
70
110
132
M8
14
8
94
64
72
5.5
14
1.5
7.2
55
2625
750
2650
160
75
115
138
M10
16
8
104
66
72
6
16
2
8.6
60
3500
650
2450
170
80
125
150
M10
16
10
114
78
89
7
18
2
10.5
70
5750
550
2150
190
90
140
165
M10
16
10
134
95
108
7.5
20
2.5
13.5
80
8500
500
1900
210
105
160
185
M10
16
10
144
100
108
9
22
2.5
18.2
90
14500
450
1700
230
120
180
206
M12
20
10
158
115
125
9
25
3
28.5
100
20000
350
1450
270
140
210
240
M16
24
10
182
120
131
10
28
3
42.5
130
31250
250
1250
310
160
240
278
M16
24
12
212
152
168
11
32
3
65
150
70000
200
980
400
200
310
360
M20
32
12
246
180
194
12
36
4
138
Packaging
China Manufacturing Wheel Barrow Wheel Bearing Gfrn40
Model NO.: GFRN40
OEM: Accept
Packaging: Single Box or as Your Requirements
Delivery: 10-15 days
Trademark: SUMA or OEM
Transport Package: Industry Packing
Specification: P6
Origin: Changzhou, Jiangsu, China
HS Code: 84836000
China Manufacturing Wheel Barrow Wheel Bearing GFRN40
Introduction of China Manufacturing Wheel Barrow Wheel Bearing Gfrn40
The GFR and GFRN series are roller-type freewheels. They are supported by two 160.. series bearings and require oil lubrication. These units can be used in designs that provide oil lubrication and sealing, as shown in the example on the next page. The bearings must not be subjected to axial stress.