Koyo Timken NSK Cylindrical Roller Bearing N321em N322em N324em

Product Specifications

Application Suitability

Need Reliable Cylindrical Roller Bearings? Here’s What to Check

Searching for the right cylindrical roller bearing often means sifting through countless models across brands like Koyo, Timken, and NSK. Mismatched dimensions can lead to installation delays, while poor material quality results in premature wear—costing your operation time and money.

Engineered for Consistent Performance

Our cylindrical roller bearings, including models N321em, N322em, and N324em, address these challenges with precision manufacturing. As a专业轴承供应商 with ISO 9001-certified production processes, we ensure each bearing meets strict dimensional standards (20*52*12mm for the 6304 series) and material requirements. With access to both our own BDL brand and international brands like NSK and Timken, we simplify sourcing by offering one-stop access to multiple options.

Optimal for Radial Load Applications

Designed as single-row radial bearings with a 0° contact angle, these cylindrical roller bearings excel in applications with high radial loads and moderate speeds. Common uses include electric motor shafts, gearbox assemblies, and conveyor rollers—where reliable load distribution and minimal friction are critical. Their bearing steel construction provides the durability needed for continuous operation in industrial environments.

Key Engineering Features Explained

The 20mm bore diameter (d), 52mm outer diameter (D), and 12mm width (B) dimensions follow international standards, ensuring interchangeability with major brand equivalents. The single-row design balances load capacity with compact size, making it suitable for space-constrained installations. Bearing steel material offers excellent hardness and wear resistance, while the 0° contact angle optimizes radial load handling—critical for preventing shaft misalignment and extending service life.

Why Quality Bearings Reduce Total Cost

Choosing a precision cylindrical roller bearing directly impacts your equipment’s reliability. Inferior bearings often fail early due to substandard material hardness or imprecise dimensions, leading to unplanned downtime and costly repairs. Our bearings undergo rigorous testing—including dimensional checks and hardness verification—to meet ISO standards, reducing the risk of premature failure. While initial costs may be slightly higher, the extended service life and reduced maintenance needs lower your total cost of ownership over time.

Quality You Can Rely On

Packaging & Shipping

• Standard packed in protective packaging to prevent damage during transit
• Ready for immediate dispatch from stock for urgent requirements
• Flexible shipping options including express courier, air freight, and sea freight
• Low minimum order quantity supported, ideal for both trial runs and bulk purchases

Get Your Cylindrical Roller Bearing Quote Today

Whether you need the N321em, N322em, N324em, or another cylindrical roller bearing model, we can provide pricing and availability quickly. Share your required model, dimensions, and quantity, and our team will confirm details and delivery timelines. The sooner you order, the sooner we can arrange shipment to keep your operations running smoothly.

Frequently Asked Questions