Nfactory K15X20X13 K15X21X21 K16X20X10 K18X22X13 K18X24X12 Needle Roller Bearings

Product Specifications

Application Suitability

Needle Roller Bearings K15X20X13, K15X21X21, K16X20X10, K18X22X13, K18X24X12: Solving Your Sizing and Sourcing Challenges

Selecting the right needle roller bearings often means sifting through dozens of models across different standards, only to find mismatched dimensions or unreliable suppliers. When your equipment relies on precise bearing fit—whether in hydraulic cylinders or automation slides—even minor size discrepancies can cause installation delays or premature failures. Sourcing from multiple vendors complicates lead times and quality consistency, adding unnecessary stress to your procurement process.

Engineered for Direct Replacement and Reliable Performance

Our needle roller bearings address these challenges with interchangeable dimensions that align with major international standards, ensuring compatibility with existing equipment. As a full-range bearing supplier, we maintain stock across diverse models including K15X20X13, K15X21X21, K16X20X10, K18X22X13, and K18X24X12, eliminating the need for multi-supplier coordination. Each bearing undergoes ISO 9001-certified production processes, from raw material inspection to final dimensional checks, making them suitable for critical applications like precision automation slides and hydraulic piston assemblies.

Optimal Performance in Compact, High-Load Environments

Needle roller bearings excel in applications where space is limited but radial load capacity is critical. With their slender roller design, these bearings deliver high load tolerance relative to their compact cross-section—ideal for gearbox shafts, robotic arms, and hydraulic cylinder rods operating under continuous radial loads. The K series models featured here maintain precise dimensional control (bore diameter from 15mm to 18mm, outer diameter from 20mm to 24mm) to ensure proper fit in tight assemblies, where even 0.1mm deviation can compromise performance.

Key Engineering Features for Long-Term Reliability

The performance of these needle roller bearings stems from critical design elements. Their hardened steel construction (surface hardness typically 58-62 HRC) resists wear under heavy loads, while the optimized roller length-to-diameter ratio distributes stress evenly across the raceway, reducing fatigue risk. The precision-machined cage maintains uniform roller spacing, preventing metal-to-metal contact and minimizing operating noise. For applications requiring maintenance flexibility, the separable inner/outer rings allow for easy installation and replacement without disassembling entire assemblies—saving valuable downtime during repairs.

Total Cost of Ownership: Why Quality Bearings Matter

Choosing substandard needle roller bearings may reduce upfront costs, but the hidden expenses of early failure—unplanned downtime, replacement labor, and potential damage to adjacent components—often exceed initial savings. Our bearings are manufactured to strict dimensional tolerances (ISO precision class P0/P6) to ensure consistent performance, directly impacting equipment uptime. By following ISO 281 load-life calculation principles, these bearings deliver predictable service life in standard operating conditions, allowing for scheduled maintenance rather than reactive repairs. For high-cycle applications like automated production lines, this reliability translates to measurable cost savings over time.

Quality Assurance You Can Trust

Packaging & Shipping

• Neutral industrial packaging with protective inner wrapping to prevent damage during transit
• Ready stock availability for prompt dispatch upon order confirmation
• Flexible shipping options including express courier, air freight, and sea freight to global destinations
• Low minimum order quantity supported, ideal for both prototype development and full-scale production

Get Your Needle Roller Bearing Quote Today

Whether you need K15X20X13, K15X21X21, K16X20X10, K18X22X13, K18X24X12, or other needle roller bearing models, provide your required specifications and quantity, and we’ll deliver a competitive quote with lead time. Our technical team can assist with cross-referencing part numbers or confirming dimensional compatibility to ensure you receive the correct bearings for your application.

Frequently Asked Questions