Roller Bearing

High Precision Tapered Roller Bearing 31311 33213 for Industrial Machinery

SKU: 7b42c5060fef In Stock

Ensure smooth, precise rotation for your industrial machinery with our High Precision Tapered Roller Bearing—engineered to minimize downtime and enhance operational stability. The 31311 and 33213 models deliver exceptional load distribution, thanks to separated inner/outer rings that simplify mounting and reduce maintenance hassle, making them ideal for heavy-duty applications like machine tools and conveyors.

  • Precision grade P0-P4 ensures consistent performance under high radial and axial loads
  • Constructed with premium bearing steel for extended service life, even in harsh working conditions
  • Compatible with both grease and oil lubrication, offering flexibility for diverse industrial setups
Wholesale Price (FOB)
¥1.10
MOQ: 1 Piece • Bulk discounts available on inquiry
12-Month Warranty
Free Samples
Global Shipping
Product Specifications

Technical Details & Description

Product Specifications

Parameter Details
Model NO. 31311, 33213, 33013, 33116, 32912
Outer Dimension 35mm-400mm
Material Bearing Steel
Design Type Non-Aligning Bearings, Separated
Load Direction Radial Bearing
Product Name Taper Roller Bearing
Bore Size 15-240 mm
Lubrication Grease or Oil
Precision Rating P0, P6, P5, P4, P2
Vibration Grade Z1V1, Z2V2, Z3V3
Service OEM, ODM
Transport Package Carton Pallet
Specification (31311) 60*130*48.5 mm
Origin China
HS Code 8482200000

Application Industries

Industry Typical Equipment
Industrial Machinery Machine Tools, Printing Presses, Reducers
Automotive Wheel Hubs, Gearboxes, Axle Systems
Agricultural Machinery Harvesters, Tractors, Heavy-Duty Transmissions
Construction Excavators, Loaders, Conveyors
Manufacturing CNC Machines, Spindles, Industrial Fans

Eliminate Downtime with High Precision 31311 & 33213 Tapered Roller Bearings

Industrial machinery operators know the cost of unexpected downtime—hours lost to bearing failure, missed deadlines, and costly repairs. Many face the frustration of matching complex bearing specifications or waiting weeks for bulk orders. When precision matters most, settling for low-quality alternatives risks equipment damage and production delays.

Engineered for Reliable Performance in Critical Machinery

Our Tapered Roller Bearings, including models 31311 and 33213, deliver the precision and durability industrial machinery demands. With P0-P4 precision ratings and Z2-Z4 noise control, these bearings minimize vibration and extend equipment life in high-stress applications. Backed by our ISO9001-certified production process and dedicated QC lab, each unit undergoes rigorous testing to ensure consistent performance.

Optimal Performance in Heavy-Load Industrial Environments

Designed for radial and axial load handling, these bearings excel in machinery subject to heavy loads and continuous operation. The separated inner and outer rings allow for easy mounting and maintenance, while bearing steel construction ensures resistance to wear and deformation under pressure. Whether in machine tool spindles, printing presses, or reducers, these bearings maintain stability even at high speeds, reducing the risk of unplanned shutdowns.

Key Technical Features That Maximize Machinery Uptime

Precision rating directly impacts machinery accuracy—our P4-grade bearings, for example, ensure minimal radial runout, critical for CNC machine tools requiring tight tolerances. Vibration grades Z2V2 and Z3V3 reduce noise and energy loss, making them ideal for precision equipment. The 60*130*48.5 mm specification of the 31311 model balances load capacity with compact design, fitting seamlessly into standard industrial gearboxes. Separated construction simplifies installation, cutting maintenance time and labor costs.

Why Genuine Bearings Lower Your Total Cost of Ownership

Counterfeit bearings may offer lower upfront prices, but they often fail prematurely, leading to costly repairs and production losses. Our Tapered Roller Bearings, manufactured to international standards, provide predictable performance and a 12-month global warranty. With free technical guidance and defect replacement, we help you avoid the hidden costs of poor-quality components—ensuring your machinery runs longer and more efficiently.

Trusted by Global Buyers for Over 18 Years

Since 2005, Jinan Saifan Bearing has supplied industrial clients across Europe, America, and Southeast Asia with reliable bearing solutions. Our integrated manufacturing and exporting capabilities mean we control quality from raw material to delivery. We offer flexible orders—1pc MOQ for standard items, 3–5 day sample lead times, and 5–15 day bulk delivery—to meet both emergency repairs and planned production needs. Our ISO14001 certification underscores our commitment to sustainable, reliable manufacturing.

Packaging & Shipping

  • Secure carton and pallet packaging to prevent damage during transit
  • 3–5 day lead time for samples, 5–15 days for bulk orders
  • Global shipping via DHL, FedEx, UPS, air, or sea freight
  • Real-time tracking provided for all shipments
  • 1pc minimum order quantity for standard models

Get Your Bearings Delivered Fast—No Minimum Order Required

Don’t let bearing issues slow your production. Whether you need a single 31311 for emergency repair or bulk 33213 bearings for scheduled maintenance, we have you covered. Send us your model number, application details, and quantity, and our team will provide a quote within 24 hours.

Frequently Asked Questions

Q: Are these bearings genuine and traceable?

A: Yes, all our bearings are manufactured in-house under ISO9001 standards, with full traceability from raw material to delivery.

Q: How do I confirm if the 31311 or 33213 is compatible with my machinery?

A: Provide your equipment model or technical specifications, and our engineering team will verify compatibility at no cost.

Q: What warranty do you offer on these tapered roller bearings?

A: We provide a 12-month global warranty covering manufacturing defects, with free replacement or refund for non-conforming products.

Q: What is the minimum order quantity for standard models?

A: We accept 1pc MOQ for standard bearings like the 31311 and 33213, ideal for emergency repairs or small-batch needs.

Q: How quickly can you ship after order confirmation?

A: Standard items ship within 5–15 days; samples are available in 3–5 days. We also offer expedited shipping options.

Q: Do you offer OEM/ODM services for custom bearing requirements?

A: Yes, we provide full OEM/ODM customization, including custom dimensions, precision grades, and branding, supported by our R&D team.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.

Sample Policy

Free samples available for distributors. 3–5 days production lead time.

Bulk Delivery

5–15 days for bulk orders. T/T, L/C and Alibaba payments accepted.

Certifications

ISO 9001:2015, ISO 14001 certified. ABMA / DIN compliant.

After-Sales

12-month warranty plus dedicated technical failure analysis support.

Engineering Insights

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