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RA type
- Commodity name： RA type
- Product Description
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Product Introduction
The RA cross roller bearing features a split outer ring and an integral inner ring, with an ultra-thin dimensional design. This model is a compact version of the RB type, in which the thickness of both the inner and outer rings has been reduced. Like the RB type, the outer ring of the RA bearing is divided into two segments that are joined together using rivets to form a single unit. The integral inner ring design is particularly well-suited for applications requiring high rotational accuracy of the inner ring, achieving stable rotational precision down to the micrometer level. The RA cross roller bearing occupies minimal space while being capable of handling heavy loads, making it ideal for applications that demand lightweight, compact designs—such as precision measuring instruments, rotating parts of robots and robotic arms, direct-drive torque motors, and high-precision rotary tables—where high precision and high rigidity are critical requirements.
Product Parameters
path
Nominal model
Main dimensions (mm)
Shaft shoulder dimensions
Rated load (radial)
Weight
Inner diameter
Outer diameter
Width
C
C0
Mass
d
D
B B1
DS
Dh
kN
kN
kilogram
50
RA5008
50
66
8
53.5
60.5
5.1
7.19
0.08
60
RA6008
60
76
8
63.5
70.5
5.68
8.68
0.09
70
RA7008
70
86
8
73.5
80.5
5.98
9.8
0.1
80
RA8008
80
96
8
83.5
90.5
6.37
11.3
0.11
90
RA9008
90
106
8
93.5
100.5
6.76
12.4
0.12
100
RA 10008
100
116
8
103.5
110.5
7.15
13.9
0.14
110
RA11008
110
126
8
113.5
120.5
7.45
15
0.15
120
RA12008
120
136
8
123.5
130.5
7.84
16.5
0.17
130
RA13008
130
146
8
133.5
140.5
7.94
17.6
0.18
140
RA14008
140
156
8
143.5
150.5
8.33
19.1
0.19
150
RA15008
150
166
8
153.5
160.5
8.82
20.6
0.2
160
RA16013
160
186
13
165
179
23.3
44.9
0.59
170
RA17013
170
196
13
175
189
23.5
46.5
0.64
180
RA18013
180
206
13
185
199
24.5
49.8
0.68
190
RA19013
190
216
13
195
209
24.9
51.5
0.69
200
RA20013
200
226
13
205
219
25.8
54.7
0.71
Keywords:
RA type
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Non-standard bearings, manufacturing, development, and sales of large- and extra-large bearings.
Contact persons: Mr. Liang, Ms. Wang
Address: Industrial Park at the intersection of Jinxin Road and Heluo Road, High-tech Zone, Luoyang City
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