3510/500 Double Row Tapered Roller Bearing 500×720×236mm | Heavy-Duty 500mm Bore Bearing for Mining, Rolling Mill & Industrial Gearbox Applications | Cross Ref: 971/500

The 3510/500 (cross-referenced as 971/500 and 352028) is an extreme heavy-duty double row tapered roller bearing with dimensions of 500×720×236mm — a large-format industrial bearing engineered for the world's most demanding heavy machinery applications. Weighing 289kg, with a dynamic load rating (Cr) of 41,000N and a static load rating (Cor) of 51,000N, this bearing is built to operate reliably under conditions that would destroy conventional bearing solutions.

Double row tapered roller bearings in this size class are specifically designed for extremely severe operating conditions — supporting massive combined radial and axial loads, tolerating significant shaft misalignment, resisting heavily contaminated environments, and absorbing continuous shock and vibration loads. These characteristics make the 3510/500 the preferred bearing solution for mining, metallurgy, steel rolling mills, heavy industrial gearboxes, and large-scale industrial drive systems worldwide.

With a bore of 500mm, a cone width (B) of 100mm, a cup width (C) of 180mm, and an overall assembly width of 236mm, the 3510/500 provides the structural mass and rolling element volume necessary for sustained extreme-load performance. Manufactured from GCr15 / 52100 chrome steel to ABEC and DIN620 precision standards, and supplied factory-direct by NEXANS Bearing from Liaocheng, Shandong, this bearing is available in sealed, shielded, or open configurations with full OEM customization for global industrial buyers.

Product Specifications

Key Features & Engineering Advantages

• ✅ Extreme Combined Load Capacity — Double row tapered geometry simultaneously handles massive radial and bidirectional axial (thrust) loads — the defining requirement for heavy mining shafts, rolling mill roll necks, and large industrial gearbox main shafts

• ✅ Industry-Highest Load Ratings in Class — With Cr of 41,000N and Cor of 51,000N, the 3510/500 delivers the highest dynamic and static load ratings available for its bore size — engineered to outlast conventional bearing solutions in extreme-duty applications

• ✅ Severe Misalignment Tolerance — Engineered to maintain full performance under significant shaft misalignment conditions, reducing sensitivity to installation errors and structural deflection in heavy machinery frames and mill housings

• ✅ Shock & Vibration Resistance — Purpose-built to absorb heavy impact loads and continuous vibration — critical for mining crushers, tunneling machines, and heavy-duty industrial drives where shock loading is a constant operational reality

• ✅ Contamination Resistance — Available with sealed or shielded configurations to protect against extreme contamination — dust, water, metal particles, and process fluids — found in mining, metallurgy, and heavy construction environments

• ✅ Triple Cross-Reference Compatibility — Referenced as 3510/500, 971/500, and 352028, compatible with multiple OEM and aftermarket part numbering systems for seamless global sourcing and maintenance replacement

• ✅ Multiple Precision & Clearance Grades — Available in ABEC 1 through 9 and DIN620 P0 through P2 precision grades, with clearance grades C0 through C5 — enabling precise specification matching for diverse heavy industrial applications

• ✅ GCr15 Chrome Steel Construction — Manufactured from high-grade GCr15 / AISI 52100 / 100Cr16 chrome steel for exceptional hardness (HRC 60–65), superior wear resistance, and outstanding rolling contact fatigue life under sustained extreme loads

Application Scenarios

The 3510/500 double row tapered roller bearing is engineered for the world's most demanding heavy industrial environments:

• Heavy Mining Machinery — Main shaft bearings for large mining crushers, grinding mills, and tunnel boring machines where extreme combined loads, shock, and contamination are constant operational conditions

• Steel & Metal Rolling Mills — Roll neck bearings in hot and cold rolling mill stands for steel, aluminum, copper, and other metal production lines requiring maximum radial and axial load capacity

• Heavy Industrial Gearboxes — Main shaft and intermediate shaft bearings in large-scale industrial gearboxes for power generation, cement production, and heavy process industries

• Hoisting & Lifting Equipment — Large crane and hoist drum shaft bearings where bidirectional axial loads and heavy radial loads are simultaneously present

• Petroleum & Energy Equipment — Large rotating machinery bearings in oil & gas drilling rigs, refinery drive systems, and power plant turbine gearboxes

• Metallurgical & Process Industry — Continuous casting machine bearings, large rotary kiln drives, and heavy-duty conveyor and mill drive shaft assemblies

3510 Series Comparison — 500 / 560 / 600

For buyers evaluating the full NEXANS 3510 series, here is a direct comparison of the three available models:

All three models are available factory-direct from NEXANS Bearing with full OEM customization, multiple clearance grades, and precision grades to order.

Why Choose NEXANS Bearing for 3510/500?

Since 1997, Liaocheng Nexans Bearing Co., Ltd has been a trusted factory-direct manufacturer and global supplier of precision heavy-duty industrial bearings. Here's why major industrial buyers and OEM equipment manufacturers worldwide choose NEXANS for extreme-duty large-format bearings:

FAQ — 3510/500 Bearing & OEM Services

Q1: What industries and machines use the 3510/500 double row tapered roller bearing?

The 3510/500 is primarily used in extreme heavy-duty industrial applications including large mining crushers, grinding mills, steel rolling mill roll necks, heavy industrial gearboxes, hoisting equipment, and large-scale metallurgical machinery. Its 500mm bore, 289kg weight, and high combined load ratings of Cr 41,000N / Cor 51,000N make it one of the most capable tapered roller bearings in industrial use — designed specifically for applications where standard bearings cannot survive.

Q2: What are the three cross-reference numbers for this bearing, and which should I use?

This bearing is cross-referenced under three designations: 3510/500 (Chinese GB standard), 971/500 (alternate catalog designation), and 352028 (ISO/DIN series number). All three refer to the identical 500×720×236mm double row tapered roller bearing. NEXANS Bearing supplies documentation under any of these reference numbers to match your procurement and maintenance system requirements.

Q3: What makes double row tapered roller bearings superior to single row for heavy industrial use?

Double row tapered roller bearings provide significantly higher combined radial and axial load capacity than single row designs, because two rows of tapered rollers share the load — dramatically increasing dynamic and static load ratings. The double row configuration also provides greater shaft rigidity, better resistance to moment loads, and improved tolerance to misalignment — all critical advantages in heavy mining, rolling mill, and large gearbox applications where shaft deflection and complex multi-directional loading are unavoidable.

Q4: How do I interpret the Cr (41,000N) and Cor (51,000N) load ratings?

The dynamic load rating (Cr) of 41,000N represents the constant radial load the bearing can carry for a calculated rating life of one million revolutions under standard conditions. The static load rating (Cor) of 51,000N represents the maximum static load the bearing can sustain without permanent deformation of rolling elements or raceways. For the 3510/500, these ratings confirm suitability for the highest-load industrial shaft applications — where both sustained dynamic loads and peak static shock loads must be safely managed simultaneously.

Q5: What clearance and precision grades are available for the 3510/500?

NEXANS Bearing supplies the 3510/500 in the following grades: Clearance: C0 (standard), C2 (reduced), C3, C4, C5 (progressively increased) Precision: ABEC 1, 3, 5, 7, 9 / DIN620 P0, P6, P5, P4, P2Grade selection depends on operating speed, temperature range, load magnitude, and shaft/housing fit requirements. Our technical team provides application-specific grade recommendations — contact us via WhatsApp (+86-15562839480) for guidance.

Q6: How is the 3510/500 bearing installed in heavy industrial machinery?

Due to its 289kg weight and 500mm bore, the 3510/500 requires specialized heavy lifting equipment and precision alignment tools for installation. Correct interference fit on the shaft and in the housing is critical, as is proper preload setting to ensure optimal load distribution across both roller rows. Thermal mounting — heating the bearing to expand the bore for installation — is typically required for interference fits at this size class. NEXANS Bearing provides full installation guidance and technical support — contact us via WhatsApp (+86-15562839480) for application-specific assistance.

Q7: Is the 3510/500 interchangeable with SKF, FAG, Timken, or NSK equivalents?

Yes. The 3510/500 is dimensionally equivalent to double row tapered roller bearings from SKF, FAG (Schaeffler), Timken, NSK, NTN, and other major manufacturers sharing the same 500×720×236mm dimensions. NEXANS Bearing manufactures this bearing to the same ABEC/DIN620 dimensional and performance standards, ensuring a direct drop-in replacement for maintenance, MRO, and OEM procurement — at significant factory-direct cost savings versus Western brand equivalents.

Q8: What are the shipping and logistics arrangements for a 289kg bearing?

The 3510/500 bearing weighs 289kg, requiring specialized heavy freight handling. NEXANS Bearing has extensive experience shipping large-format industrial bearings globally, using secure reinforced wooden crate packaging, professional heavy freight carriers, and full export documentation including packing lists, commercial invoices, material certificates, and certificates of origin. Contact our logistics team at export@nksbearing.com for freight quotation and delivery timeline to your destination.

Get a Quote Now

Ready to source 3510/500 Double Row Tapered Roller Bearings for your heavy industrial project, mining equipment, rolling mill, or OEM supply needs?

Email: export@nksbearing.com WhatsApp: +86-15562839480 Website: www.nksbearing.com

NEXANS Bearing — Your trusted factory-direct partner for extreme heavy-duty precision bearings since 1997.