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The S71904 ACD/HCP4A is a super precision angular contact ball bearing with a compact 20mm bore and 37mm outer diameter, crafted from high-quality chrome steel. Its 25° contact angle and ceramic balls ensure smooth operation under radial loads up to 1287 lbf.
The sealed design keeps lubrication in place, while the phenolic cage offers durability. With a maximum speed of 48,000 RPM, it’s built for high-performance applications like machine tools or precision instruments.
This bearing comes preloaded and matched for easy installation, complying with P4 (ABEC-7) tolerance standards. Ideal for scenarios demanding low friction and high accuracy, such as spindle drives or robotics. Weighing just 0.033kg, it’s lightweight yet robust.
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Performance Features of S71904 ACD/HCP4A Bearing
S71904 ACD/HCP4A Bearing features a 25° contact angle, optimised for precision angular contact applications.
The ceramic balls and chrome steel rings ensure smooth operation even at high speeds up to 48,000 rpm.
Its phenolic cage maintains ball alignment, reducing friction and wear.
The sealed design keeps contaminants out, extending the bearing’s service life.
With a dynamic radial load capacity of 1287 lbf, it handles demanding tasks reliably.
The P4 tolerance class ensures high precision, making it suitable for sensitive equipment.
Preload availability enhances performance in matched arrangements.
Its compact size (20mm×37mm×9mm) allows for efficient use in space-constrained applications.
Key Fields for S71904 ACD/HCP4A Bearing
S71904 ACD/HCP4A Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The ceramic balls reduce friction, making it suitable for demanding industrial environments.
In automotive applications, S71904 ACD/HCP4A Bearing supports components like electric motors and gearboxes, where its sealed design helps maintain lubrication. The phenolic cage adds durability, even under continuous use.
For medical imaging devices, S71904 ACD/HCP4A Bearing’s P4 tolerance class provides the reliability needed for smooth operation. Its compact size and lightweight design make it ideal for space-constrained equipment.
Automation systems benefit from S71904 ACD/HCP4A Bearing’s matched arrangement, which ensures consistent performance in robotic arms. The high-speed capability makes it a practical choice for smart manufacturing lines.
In consumer electronics, S71904 ACD/HCP4A Bearing’s low friction and quiet operation are perfect for devices like printers and small fans. The sealed construction also helps keep out dust and debris.
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