Ball bearings

MR105ZZ bearing is a compact 5x10x4 mm stainless steel miniature ball bearing with metal shields (ZZ) for dust protection and long-life grease, delivering high-speed, low-friction rotation in tight spaces. Suitable for 3D printers, small motors, RC models, fans, and compact robotics; rated around 5,000–6,000 RPM.

• Miniature size: fits tight spaces and thin shafts
• High-speed capable: Rated around 5,000–6,000 RPM
• ZZ metal shields: Helps reduce contamination and retain lubrication
• Stainless steel bearing: Durable, wear-resistant, and corrosion resistant
• Pre-lubricated: Long-life grease for smoother operation and low maintenance

606ZZ bearing is a metal-shielded deep-groove ball bearing with 6x17x6 mm dimensions. Its ZZ non-contact shields protect the grease and offer light protection against dust, moisture, and debris while enabling high-speed, low-friction operation. Suitable for high radial loads and precise, quiet running. Common uses include 3D printers, small motors, conveyors, and DIY projects. Each order includes 1 piece.

• Bore diameter: 6 mm
• Outer diameter: 17 mm
• Width: 6 mm
• Shielding: metal ZZ non-contact shields on both sides
• Type: deep-groove ball bearing
• Weight: 10 g
• Package: 1 piece per order

685ZZ bearing is a high-precision, double shielded miniature deep-groove ball bearing for compact, smooth high-speed rotation. Size: 5mm (ID) × 11mm (OD) × 5mm (width). Made from chrome steel (GCr15) and pre-lubricated with grease, it uses metal shields on both sides (ZZ) to help keep lubricant in and reduce dust entry. Supports radial and axial loads, designed for durability, low noise, and low maintenance—ideal for 3D printers and small motors, RC, robotics, and hobby machinery.

• Model: 685ZZ deep groove miniature ball bearing
• Double metal shields (ZZ) on both sides to help reduce dust and retain factory grease
• Dimensions: 5mm × 11mm × 5mm (ID × OD × Width)
• Material: Chrome steel (GCr15), pre-lubricated with grease
• Load ratings: Cr 640 N (dynamic), Cor 230 N (static)
• Limiting speed (grease): 59,000 RPM
• Common uses: 3D printer guide rails/print head movement, RC wheels/axles, small electric motors, wheel assemblies, robotics joints/actuators, instrumentation, model making
• Package includes: 1× 685ZZ bearing

The 623ZZ miniature ball bearing is a compact 3x10x4 mm deep groove ABEC-3 with double shields, pre-lubricated for low-friction, high-speed rotation. Designed for reliable radial support with light axial load, it suits 3D printers, CNCs, robotics, and compact gearboxes, offering dust protection and smooth, low-noise operation.

• High precision deep groove ball bearing
• Smooth and stable rotation
• Double shielded for dust protection
• Pre-lubricated for long service life
• Compact miniature size (3×10×4mm)
• Low noise and low vibration operation
• Durable construction for continuous use

694ZZ is a stainless steel miniature deep groove radial ball bearing (4x11x4 mm) with double shields. Pre-lubricated with grease, it delivers smooth, low-noise rotation in tight spaces. Its design protects against dust while retaining lubrication, making it ideal for precision applications like 3D printers, CNC machines, robotics, small motors, and automation systems. It supports radial loads with limited axial load.

• 4 mm inside diameter (ID) x 11 mm outer diameter (OD) x 4 mm width
• Stainless steel construction for corrosion resistance and durability
• Double shielded ZZ seals to keep contaminants out and lubrication in
• Grease pre-lubricated for ready-to-install, low-maintenance operation
• Deep groove radial ball bearing supports radial loads with limited axial load

624ZZ stainless steel miniature shielded radial ball bearing (4x13x5 mm) with double metal shields and pre-lubricated design for smooth, low-noise rotation in tight spaces. Ideal for 3D printers, RC cars, robotics, medical instruments, and small electric motors.

• High-precision deep groove radial ball bearing for smooth, low-friction rotation
• Stainless steel construction for corrosion resistance and durability
• Double shielded ZZ design protects from contaminants and retains lubrication
• Compact size: 4 mm ID x 13 mm OD x 5 mm width
• Pre-lubricated for maintenance-free operation
• Low noise and low vibration suitable for quiet applications
• Wide range of applications including 3D printers, RC cars, robotics, medical devices, and small electric motors