RU178

Design Features of RU178 Bearing

RU178 Bearing is designed for high-precision rotational motion, with crossed cylindrical rollers arranged at right angles to provide exceptional rigidity and load-bearing capacity. RU178 outer dia is 240 mm. Its bore dia is 115 mm. Its integrated, compact structure supports radial, axial, and moment loads in any direction, simplifying installation by eliminating the need for a mounting flange.

What Benefits Can RU178 Bearing Provide?

High Load Capacity: Its crossed roller design allows it to handle radial, axial, and moment loads in all directions, making it highly versatile for various applications.
Exceptional Rigidity: The compact, integrated design enhances structural rigidity, ensuring stability and precision in demanding applications.
Smooth and Accurate Rotation: The crossed roller configuration minimizes friction and enables precise rotational movement, ideal for high-precision equipment.
Space-Saving Design: By eliminating the need for a mounting flange, it reduces installation space and simplifies setup in compact environments.
Reduced Maintenance: Its robust construction and high load tolerance contribute to a longer lifespan with minimal maintenance.

What Can RU178 Bearing Be Used for?

Industrial Robots: It enables precise, stable rotation in robotic joints, supporting smooth and accurate movement under various loads.
CNC Machinery: The bearing is ideal for rotary tables and indexing heads, ensuring precise positioning in machining and milling operations.
Medical Imaging Equipment: Its high rigidity and load capacity make it suitable for MRI machines and CT scanners, where stability and smooth rotation are essential.
Semiconductor Manufacturing: The crossed roller ring supports delicate yet accurate movement in wafer-handling systems and precision stages.
Aerospace Components: Its robust design and space-saving features make it well-suited for gimbals, navigation systems, and other aerospace applications requiring high precision and reliability.

Part Number	RU178
System of Measurement	Metric
Bearing Type	Roller
Roller Bearing Type	Crossed
For Load Direction	Combined
Construction	Single Row
Seal Type	Open
Bore Dia	115 mm
Outer Dia	240 mm
Width	28 mm
Inner Ring PCD1	139 mm
Outer Ring PCD2	217 mm
Greasing Hole(d1)	3.1 mm
R(min)	1.5 mm
Shoulder Height Ds(max)	161 mm
Shoulder Height Dh(min)	195 mm
Holes	With Holes
Inner Ring Mounting Hole	12-M8 through
Outer Ring Mounting Hole	12-φ9 through φ14 counter bore depth 13.5
Ring Material	Steel
Roller Material	Steel
Basic Load Rating C	80.3 kN
Basic Load Rating Co	135 kN
Lubrication	Required
Shaft Mount Type	Press Fit
Temperature Range	0 -230 °F
ABEC Rating	ABEC5(Available in ABEC7/9)
RoHS	Compliant
REACH	Compliant
Weight	6.8 Kg