Affordable & Fast Delivery: Factory Direct KHRD Brand 30310/30311/30310JR/30311JR Taper Roller Bearings for Trailer - ISO Certified
Affordable & Fast Delivery: Factory Direct KHRD Brand 30310/30311/30310JR/30311JR Taper Roller Bearings for Trailer - ISO Certified - Image 2
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Estimated delivery time: 3-5 days

Affordable & Fast Delivery: Factory Direct KHRD Brand 30310/30311/30310JR/30311JR Taper Roller Bearings for Trailer - ISO Certified

  • Models. 30310, 30310jr, 30311, 30311jr
  • Type. Taper Roller Bearing
  • Inner Diameter. 50mm (30310), 55mm (30311)
  • Outer Diameter. 110mm (30310), 120mm (30311)
  • Thickness. 29.25mm (30310), 31.5mm (30311)
  • Dynamic Load. 122kN | Static Load. 108kN
  • Material. High-Carbon Chromium Steel
  • Cage. Stamped Steel
  • Speed Limit. 4500 RPM (Grease), 6000 RPM (Oil)
  • Sealing. Open (JR variants available with ribbed design)
  • Application. Trailers, axles, heavy-duty automotive systems

Detailed parameters

Table of Contents

Product Overview & Specifications

Key Features of KHRD Taper Roller Bearings

KHRD 30310, 30311, 30310jr, and 30311jr taper roller bearings are engineered for heavy-duty applications requiring high radial and axial load capacity. These bearings are heat-treated for enhanced durability and include precision-ground surfaces for optimal performance in automotive and industrial environments. environments.

Technical Specifications Comparison

Model Inner Diameter (mm) Outer Diameter (mm) Width (mm) Dynamic Load Rating (kN) Static Load Rating (kN)
30310 50 110 27 158 183
30311 55 120 31 198 225
30310jr 50 110 27 162 190
30311jr 55 120 31 205 235

*The "jr" series features enhanced sealing for dust and moisture resistance.

Detailed Applications

Primary Industries & Use Cases

KHRD taper roller bearings are widely used in.

  • Trailer Axles. Withstand heavy payloads and uneven road conditions.
  • Agricultural Machinery. Resistant to debris and extreme temperatures.
  • Construction Equipment. Optimized for high shock loads in excavators and cranes.
  • Commercial Vehicles. Reduce friction in gearboxes and wheel hubs.

Usage Scenarios

Scenario 1: Trailer Axle Maintenance

Replacing worn-out bearings in trailer axles with KHRD 30311jr reduces downtime by 40% due to its extended service life (up to 15,000 hours under Replacing worn-out bearings in trailer axles with KHRD 30311jr)

Scenario 2: Mining Conveyor Systems

KHRD 30310 bearings in conveyor rollers improve operational efficiency by 25% in high-vibration mining environments.

Client Case Studies

Case Study 1: Heavy Haulage Logistics Provider (Germany)

  • Challenge. Frequent bearing failures in 50-ton trailers.
  • Solution. Upgraded to KHRD 30311jr bearings with triple-lip seals.
  • Result. 18-month service interval achieved, reducing maintenance costs by $12,000 annually.

Case Study 2: Agricultural Equipment Manufacturer (USA)

  • Challenge. Corrosion in harvesters due to humidity.
  • Solution. Implemented KHRD 30310jr bearings with zinc-nickel coating.
  • Result. 90% reduction in replacement rate during harvest seasons.

Request a Quote or Technical Support

Contact KHRD's engineering team for customised solutions.

Provide your equipment model, operating conditions, and required specifications for a tailored bearing recommendation.

About the company

nbearing is a professional bearing firm. We offer top-notch bearing products globally. With advanced technology and strict quality control, our diverse bearings serve industries like manufacturing and automotive. With advanced technology and strict quality control, our diverse bearings serve industries like manufacturing and automotive. Thanks to our professional team and good service, nbearing has won trust and a great reputation in the industry.

Why Collaborate with NBearing? Eight Reasons for a Win - win Partnership

In the bearing industry, choosing to cooperate with NBearing means embarking on a journey full of opportunities and value. we become your ideal partner with numerous outstanding advantages.

Exceptional Quality

We strictly control quality, use high - quality materials and advanced processes to ensure outstanding bearing performance, providing reliable support for your business.

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Advanced equipment and processes enable efficient production, ensuring rapid order delivery to meet your urgent needs.

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Why Chem-iso's delivery rate is guaranteed to be 99.99%

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Cooperate with 500+ suppliers for stable raw material supply.

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Join Hands with NBearing, Build a Distinguished Brand Together

NBearing focuses on the bearing field, crafting high - quality bearings with exquisite craftsmanship and innovative concepts. With outstanding quality, diverse products, and considerate services, it partners with numerous brands, shining brightly in the global market.
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