Thrust Ball Bearing 51118 51218 51318 51120 51220 P0-P4 Precision for Industrial Machinery

Product Specifications

Application Industries

Prevent Costly Downtime with Precision Thrust Ball Bearings 51118-51220 for Industrial Machinery

Equipment failures from low-quality bearings cost manufacturers thousands in lost production each year. Misaligned thrust bearings in machine tools cause premature wear, while delayed shipments of critical replacements leave production lines idle. Even small precision errors in bearing specifications can lead to increased noise, energy waste, and shortened service life—problems that hit your bottom line hard.

Thrust Ball Bearings You Can Rely On, In Stock and Ready to Ship

Our Thrust Ball Bearing series (51118, 51218, 51318, 51120, 51220) solves these challenges with P0-P4 precision ratings and Z1V1-Z3V3 noise control, ideal for industrial machinery demanding reliable axial load handling. As an integrated manufacturer with full R&D and QC labs, we maintain consistent stock for standard items, supporting 1pc MOQ and 3–5 day sample lead times. Whether you need a single replacement for a machine tool or bulk orders for your production line, we deliver the right bearing when you need it.

Engineered for High-Performance Industrial Applications

These single-row thrust ball bearings excel in applications with heavy axial loads and moderate speeds, such as press machines, gearboxes, and spindle assemblies. The separated design allows easy mounting and dismounting, simplifying maintenance, while the 0° contact angle ensures optimal load distribution. Constructed from high-grade bearing steel, they withstand rigorous industrial environments, providing stable performance in both grease-lubricated and oil-lubricated systems.

Precision Parameters That Drive Machinery Efficiency

Our Thrust Ball Bearings are defined by critical technical features that directly impact your equipment’s performance. The precision rating (P0-P4) controls dimensional accuracy—P4 grade bearings, for example, minimize radial and axial runout, essential for high-speed machine tool spindles. Vibration grades (Z2V2-Z3V3) reduce operational noise, a key requirement in precision manufacturing settings. The separated structure allows for easy alignment during installation, while the single-row design optimizes load capacity for axial force applications, ensuring longer bearing life and reduced maintenance intervals.

Why Cutting Corners on Bearings Costs More in the Long Run

Choosing uncertified thrust bearings may save upfront costs, but the hidden expenses add up quickly. A failed bearing can halt production for days, costing $1,000+ per hour in downtime. Poor precision leads to uneven wear on mating components, requiring premature replacement of gears, shafts, and housings. Our ISO9001:2008 certified bearings, however, undergo rigorous testing to ensure consistent quality, reducing failure risks and lowering total cost of ownership. With a 12-month global warranty, we stand behind every bearing, offering defect replacement or refund to protect your investment.

Your Trusted Partner for Bearing Solutions Since 2005

Packaging & Shipping

• Carton pallet packaging with secure protection for transportation
• 3–5 day sample lead time for standard items
• 5–15 day bulk delivery, with expedited options available
• Global shipping via trusted carriers; tracking provided for all orders
• 1pc MOQ supported for emergency repairs and small-batch requirements

Get Your Precision Thrust Bearings Today

Don’t let bearing issues slow your production. Send us your required model (51118, 51218, 51120, etc.), application details, and quantity, and we’ll provide a quote within 24 hours. With in-stock availability and fast shipping, we help you minimize downtime and keep your machinery running at peak efficiency.

Frequently Asked Questions