6904-2RS 20x37x9mm Higher-Torque Sealed Bearing for Robot Joints & Auto Motors Thin Section Ball Bearing

Higher-Torque Capacity in a Thin Envelope
The 6904-2RS (20x37x9mm) increases both bore and cross-section slightly over smaller thin-section sizes, giving it more capacity for the higher reaction loads seen in larger robot joints and auto-motor shafts.

Suited to Robot Base and Arm Joints
This size is commonly specified for base-rotation joints and mid-arm segments where torque transmission is greater than at the wrist or gripper end of a robotic arm.

Rubber Sealing for Long-Term Reliability
RS seals keep lubricant in and contamination out, supporting extended service intervals in enclosed robotic and automotive motor housings.

A Dependable Step-Up Size
For engineers scaling a robot design from lighter to heavier payload classes, this bearing offers a natural next step in the same thin-section family, minimizing redesign effort across a robot product line.

Proven in Higher-Torque Applications
Field data and sample units are available to support engineering evaluation for robotics and automotive teams scaling up from lighter-duty joint positions.