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The 71904 ACE/P4ADT is a super precision angular contact ball bearing with a 20mm bore and 37mm outer diameter, crafted from durable chrome steel. It supports radial loads up to 1712 lbf and operates smoothly at speeds up to 75,000 RPM.
Its 25° contact angle and matched arrangement (2 bearings << DT) provide excellent stability for angular loads. The open design and phenolic cage ensure reliable performance with easy maintenance. This bearing is ideal for high-speed applications like machine tool spindles or precision instruments. Its P4A tolerance class guarantees tight precision for demanding tasks. Weighing just 0.072kg, it’s lightweight yet robust. Compatible with SKF bearings, it’s a practical choice for replacements or upgrades. Works well in temperatures from -30°C to 110°C.
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Performance Features of 71904 ACE/P4ADT Bearing
71904 ACE/P4ADT Bearing is designed with a 25° contact angle, optimising load distribution for angular contact applications.
Its chrome steel rings and balls ensure durability, while the phenolic cage reduces friction and noise.
The bearing set includes two matched units, providing balanced performance in high-speed operations.
With a maximum speed of 75,000 rpm, it delivers reliable precision in demanding conditions.
Key Fields for 71904 ACE/P4ADT Bearing
71904 ACE/P4ADT Bearing is commonly used in high-speed machine tools, where its precision and angular contact design ensure accurate performance. The open seal type allows for efficient lubrication, extending its lifespan in demanding conditions.
In automotive applications, 71904 ACE/P4ADT Bearing supports components like electric motors and gearboxes, handling both radial and axial loads smoothly. Its phenolic cage material reduces friction, making it ideal for high-speed operations.
For medical imaging devices, 71904 ACE/P4ADT Bearing’s chrome steel construction provides reliability and stability. The P4A tolerance class ensures consistent performance in critical medical environments.
Automation systems benefit from 71904 ACE/P4ADT Bearing’s matched arrangement, which enhances precision in robotic arms and CNC machines. The preload option further improves rigidity and reduces vibration.
In consumer electronics, 71904 ACE/P4ADT Bearing is found in high-performance fans and printers, where its low noise and smooth operation are valued. The metric sizing ensures compatibility with a wide range of devices.
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