China Good quality RU Series Crossed Roller Bearings with Good quality

RU Series Crossed Roller Bearings

RU series crossed roller bearing series(Integrated Inner/Outer Ring Type) Since the mounting holes are provided, the model does not require a presser flange or housing. In addition, because it has an integrated inner/outer ring structure and is equipped with washers, its performance is minimally affected by the mounting procedure, ensuring stable rotation accuracy and torque.

RU Series Crossed Roller Ring Features

1. Integrated inner ring and outer ring provide high stiffness.
2. Sustain radial, axial, and moment loads simultaneously.
3. High rigidity & rotation accuracy. Its compact structure can also reduce the influence of the installation.
4. Miniaturization. Inner ring and outer ring with mounting holes, so it can be easily mounted to a device with bolts without need for housing and fixing plate, so surrounding parts of the bearing can be made compact, contributing to miniaturization and a weight saving of devices.

Technical data

Size Main dimensions Shoulder height  Basic load rating    (radial) weight
d D DP width B B1 Chamfer ds Dh      C C0 Kg
(mm) (mm) (mm) (mm) (min)      KN KN
RU42 20 70 41.5 12 0.6 37 47 7.35 8.35 0.29
RU66 35 95 66 15 0.6 59 74 17.5 22.3 0.62
RU85 55 120 85 15 0.6 79 93 20.3 29.5 1
RU 124(G) 80 165 124 22 1 114 134 33.1 50.9 2.6
RU 124X
RU148(G) 90 210 147.5 25 1.5 133 162 49.1 76.8 4.9
RU 148X
RU 178(G) 115 240 178 28 1.5 161 195 80.3 135 6.8
RU 178X
RU 228(G) 160 295 227.5 35 2 208 246 104 172 11.4
RU 228X
RU 297(G) 210 380 297.3 40 2.5 272 320 156 281 21.3
RU 297X
RU 445(G) 350 540 445.4 45 2.5 417 473 222 473 35.4

Model number naming method:

E. g: RU178 UU CC0 P2 BG X -N

RU178: bearing model;

UU: both sides with a seal; U: 1 side with a seal;

Radial clearance:

CC0: negative clearance(preload); C0: positive clearance; C1: great than C0 positive clearance;

P2: precision grade, P0 if without stated;

The symbol for accuracy required position:

B: both the inner ring and outer ring required rotating accuracy;

R: outer ring required rotating accuracy;

No symbol: inner ring required rotating accuracy;

The symbol for the assembly direction of the mounting hole:

G: counter boreholes of the inner and outer rings face positive directions;

No symbol: counter boreholes of the inner and outer rings face the direction.

The symbol for the inner ring hole:

X: through holes on the inner ring;

No symbol: counter holes on the inner ring

Optional symbol:

-N: with grease nipple;

No symbol: no accessory.

Applications of RU Series Crossed Roller Bearings

Joint units of robots, precision rotary tables, hollow, rotating platforms, radar, precision measuring instruments, etc.

Company Information

We are a professional bearing exporter in China, producing many different types and sizes of bearings. We can provide you with excellent service in a wide range of bearings with world-class quality, such as deep groove ball bearings, spherical roller bearings, self-aligning ball bearings, cylindrical roller bearings, tapered roller bearings, thrust roller bearings, angular contact ball bearings, needle roller bearings, crossed roller bearings, pillow block bearing, slewing bearings, plain bearings, etc. Bearings can also provide OEM services according to customer requirements. Our bearings products are widely used in various applications, such as port, ship, vehicle, mining, engineering, lifting, environmental protection, oil, chemicals, light industry, metallurgical machinery, the military, etc. Products are exported to the United States, Germany, Japan, Spain, Canada, Italy, France, Finland, South Korea, India, Singapore, Brazil, Australia, and other countries. If you need crossed roller bearings, please get in touch with us.


Q. Are you a trading company or a manufacturer?

A: We are a manufacturer.

Q: How long is your crossed roller bearings delivery time?

A: Generally, it is 3-5 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, according to quantity.

Q: Do you provide samples for crossed roller bearings? Is it free or extra?

A: Yes, we could offer the sample for free but do not pay the freight cost.

Q: Could you accept OEM and customize crossed roller bearings?

A: We can customize it for you according to the sample or drawing.

Q: What are your terms of payment?

A: Payment<=1000USD, 100% in advance.Payment>=1000USD, 30% T/T in advance ,pay the balance before shippment.

Q: Will you check these products before shipment?

A: Our factory QC Process System will strictly inspect products before shipment. We have a professional QC team.

Q: What will we do if you are unsatisfied with the product?

A: If you have any abnormalities, please get in touch with us for the first time, and we will immediately process them.

If you need crossed roller bearings or any models of bearings, please contact me!