We supply standard grades from G5 to G100, with higher grades (p.ej., G5, G10) offering the tightest tolerances for critical, high-speed applications. Sizes are available in a wide range, from miniature sizes of 0.5mm (0.0197") to larger diameters of 50.8mm (2.0") and beyond, depending on the material.
Materiales & Key Properties:
• Chrome Steel : The industry standard, offering an excellent balance of hardness (60-67 CDH) and load capacity. Ideal for most general industrial and automotive applications.
• Stainless Steel (440C, 316): Provides superior corrosion resistance. Grade 440C is martensitic and can be hardened to 58-60 CDH, suitable for food, marine, and chemical environments. Grade 316 (austenitic) offers maximum corrosion resistance for highly aggressive media.
• Ceramic (ZrO2/Si3N4): These advanced bearing balls are lightweight (60% más ligero que el acero), electrically insulating, and highly resistant to wear, corrosión, and thermal expansion. They operate effectively in high-speed, high-temperature, and chemically hostile environments where metal fails.
Nail Charm Miniature Bearing – Ideal for nail charms, phone cases, scrapbooking, and kinetic jewelry crafts. Adds eye-catching movement to any project.
Dimensiones (OD x ID x Thickness): 4 incógnita 5 incógnita 2.5 mm
Material: High-grade bearing steel / Copper alloy
Rotation Type: 360° continuous, low-friction
Structure: Deep groove ball bearing with steel balls and steel cage
Precision Grade: P0 (standard industrial grade)
Sealing Type: Seal / Shield (dust and humidity protection)
Color: Gold (most common), Silver (available on request)
Our cylindrical roller bearings are suitable for transmissions, motors, machine tools and heavy industrial equipment, featuring a long service life, reduced maintenance requirements and optimized power transmission performance.
Product Design and Core SpecificationsA cylindrical roller bearing is characterized by its cylindrical rolling elements with a length typically greater than their diameter. This linear contact with the raceways, as opposed to the point contact in ball bearings, is the key to its exceptional performance. We offer a comprehensive range of standard types and sizes:
Standard Series: Includes popular series such asN, NU, NJ, NUP, y NF, each designed for specific internal configurations and axial displacement capabilities (p.ej., NU design allows free axial displacement of the shaft).
Bore Diameter Range: From20mm to over300 milímetros, catering to a vast spectrum of industrial machinery.
Precision Classes: Available from standard ABEC 1 (P0) to high-precision ABEC 5 (P5) for applications requiring exceptional running accuracy and minimum vibration.
Cage Options: Standard cages include high-strength, precision-stamped steel cages for durability and speed. Machined brass or polymer cages are available for specialized high-speed or corrosive applications.
Internal Clearance: Supplied with standard radial internal clearance (C0, CN), with modified clearance groups (C3, C4) available for applications with specific thermal expansion or fit requirements.
Component features:
High Square type model (HGH)
Heavy Load model (CA)
Standard we have Z0 Pre Tension, perfect for CNC-Routers
High Precision Class (H)
4 x Threaded hole in carriage allows mounting from above
Mounting from below not possible (we advise to use HGW model then)
Model Type: HGH20 (Flange Type / Standard Length Block)
Rail Size: 20mm width
Block Dimensions: Low-profile, high-strength flange design for easy mounting from the top.
Material: High-quality GCr15 bearing steel, fully heat-treated for maximum hardness (CDH 58-62) and wear resistance.
Load Capacity: Features a 4-way equal load design, capable of absorbing radial, reverse radial, and lateral loads simultaneously. It offers exceptional static and dynamic moment ratings suitable for cantilevered applications.
Accuracy Class: Available in N (Normal), H (Alto), and P (Precisión) grades to suit varying OEM requirements.
Length (L): 58 milímetros (Standard length, variations may exist)
Clasificaciones de carga: Engineered to handle both dynamic and static loads. Specific radial load capacity depends on the configuration and mounting but is suitable for a wide range of industrial automation tasks. Exact values are available in our technical datasheet.
K Series Needle Roller and Cage Assembly – Self-Contained, Minimal Radial Space. Precision cage-guided needle rollers, ready-to-mount rolling bearing without inner/outer rings. When shaft and housing bore serve as raceways, the assembly creates ultra-compact bearing arrangements. The thinnest cross-sectional height among all rolling bearings, with high radial load capacity, high stiffness, and precision tolerance classes from P0 to P2. Ideal for transmissions, engines, compressors, conveyor systems, gearboxes, and connecting rod applications.
Modelo: K202612
Type: Needle roller and cage assembly, single row, radial, metric series
Fw (bore diameter): 20 milímetros / 0.7874 in
Ew (outer diameter): 26 milímetros / 1.0236 in
Bc / Ancho (B): 12 milímetros / 0.4724 in
Weight: Aprox.. 11.5 g – 13.2 g
Angular Contact Ball Bearings – High Precision, High Speed, Combined Load Capacity. Single-row, double-row and paired configurations for CNC spindles, robótica, high-speed motors and pumps. Contact angles (15°–40°) tailored for axial load or high-speed priority.
Additional Variants:
Open design – Maximum speed capability; user must apply appropriate grease or oil.
Sealed variants (2RS) – Contact rubber seals on both sides provide excellent contamination protection. Sealed angular contact bearings can extend grease life by over 1.5× compared to open designs, making them ideal for precision operations in dusty or washdown environments.
Shielded variants (ZZ) – Non-contact metal shields for high-speed applications requiring dust protection without friction penalties.
R4 is specifically designed to seamlessly integrate with mechanical equipment manufactured according to imperial (inch) dimensions, and is suitable for markets that follow imperial standards.
Especificaciones clave:
Diámetro interior (d): 1/4 inch (0.2500")
Diámetro exterior (D): 0.625 inch (5/8")
Ancho (B): 0.196 inch
Dynamic & Static Load Ratings: Engineered for reliable performance in its size class. The R4 offers a balanced dynamic (cr) and static (cor) load capacity suitable for its intended applications.
Speed Ratings: Capable of moderate to high rotational speeds, with specific limits depending on the lubrication condition and operational environment
Internal Clearance: Typically supplied with a standard radial internal clearance (C0/CN) suitable for most common applications. Other clearance groups can be specified for unique thermal or fit requirements.
Sealing/Shielding Options: Supplied as open, or with metal shields (ZZ) o sellos de goma (2RS) to retain grease and exclude contaminants.
Rodamientos rígidos de bolas en miniatura para máquinas clavadoras: grado de precisión P5, ruido ultrabajo ≤20dB, acelera hasta 50,000 RPM. Baja vibración, aumento de temperatura baja, rotación suave. Prelubricado y listo para instalar.. Perfecto para limas de uñas eléctricas., impresoras de uñas, ejercicios de manicura, y piezas de mano de belleza donde el silencio, cómodo, y el rendimiento confiable es lo más importante.
Dimensiones: 3×8×4mm, 3×10×4mm, 6×10×3mm, 8×14×4mm.
Material: Acero cromado / Stainless Steel
Grease Speed Limit: 40,000+ RPM
Seal Type: ZZ (escudo metálico)
Grado de precisión: P5
Noise Level: ≤20dB