Nylon vs Steel vs Brass: Which Bearing Cage Survives Heat?
Compare Nylon (TN9), Pressed Steel, and Machined Brass (M) bearing cages under high heat. Explore 4 practical case scenarios to prevent premature cage failure.
Read articleCompare leading global bearing brands and explore compatible TFL alternatives by model, product type and application.
View all Brands GuideMatch manufacturer part numbers with interchangeable TFL bearing options and model-selection support.
Browse bearing solutions by equipment, operating environment and industry.
Practical guidance on bearing selection, applications, maintenance and sourcing.
Compare Nylon (TN9), Pressed Steel, and Machined Brass (M) bearing cages under high heat. Explore 4 practical case scenarios to prevent premature cage failure.
Read article
Find answers about quality, orders, technical support and after-sales service.
Use our articles, reference tools and customer resources to support sourcing decisions.
Learn about TFL Bearing, our quality systems and supply capabilities.
View all About & CapabilitiesAccess engineering support and services throughout the purchasing process.
View all Services & SupportExplore customer projects, sourcing partnerships and ways to contact our team.
View all Work With TFL
The SF689zz is a small, shielded ball bearing with a 9mm bore and 17mm outer diameter, crafted entirely from stainless steel for durability. It handles radial loads up to 228 lbf and spins smoothly at speeds up to 32,400 RPM.
Its shielded design keeps out dust while allowing easy lubrication, and the stainless steel cage ensures corrosion resistance. The bearing operates reliably in temperatures from -30°C to 110°C.
With a compact width of just 5mm and a lightweight 4.87g design, it fits neatly into tight spaces. Ideal for small motors, hobbyist projects, or precision instruments where space and speed matter.
Compliant with RoHS and REACH standards, it’s a safe and practical choice for everyday applications.
How Does SF689zz Bearing Reduce Friction?
SF689zz Bearing features stainless steel rings and balls, ensuring smooth operation with minimal friction.
Its shielded design protects against contaminants while maintaining low resistance during rotation.
With a dynamic radial load capacity of 228 lbf, it delivers reliable performance in various applications.
The precision ABEC1 tolerance ensures consistent operation at speeds up to 32,400 rpm.
Common Applications of SF689zz Bearing
SF689zz Bearing is widely used in small electric motors, such as those found in cooling fans and power tools, thanks to its compact size and shielded design. The stainless steel construction ensures durability even in humid or corrosive environments.
In automation systems, SF689zz Bearing provides smooth rotation for components like robotic arms and conveyor belts. Its high-speed capability makes it suitable for precision tasks where reliability is key.
For consumer electronics, SF689zz Bearing is a go-to choice for devices like printers and small appliances. The lightweight design and low noise operation enhance user experience in everyday gadgets.
Medical devices also benefit from SF689zz Bearing, particularly in portable equipment where space and weight are critical factors. The shielded design helps keep contaminants out, ensuring consistent performance.