502894B / 502894 Four Row Cylindrical Roller Bearing 160*230*130mm

1. Product Overview

502894B, 160RV2301 and 314190 are fully interchangeable four-row cylindrical roller bearings dedicated to steel rolling mill work rolls, unified boundary dimensions d160×D230×B130mm. Different coding standards from mainstream brands: 502894B is SKF designation, 160RV2301 is NSK RV series mill bearing code, 314190 is universal general model number for rolling mill equipment.

Adopt dense four-row cylindrical roller linear contact layout, equipped with solid machined brass cage to resist high temperature and heavy alternating rolling impact load. Separable inner and outer ring split structure, convenient disassembly during roll replacement and mill maintenance. All bearing rings and rollers are fully quenched GCr15 high carbon chromium bearing steel, ultra-precision deep grinding raceway, stable anti-fatigue and wear performance under long-time continuous hot rolling harsh working conditions. Specially designed with large internal clearance to adapt thermal expansion of high-temperature rolling rolls, widely matched cold rolling mill, hot strip mill, plate rolling mill and metallurgical heavy rolling production lines.

2. Technical Specifications

3. Core Advantages

• Three brand interchangeable part numbers, one set production covers SKF/NSK/general mill equipment replacement demand, reduce spare parts inventory pressure for steel plants.
• Four-row dense roller linear contact design, ultra-high dynamic and static load capacity, stable operation under heavy rolling extrusion and instantaneous impact load of strip steel.
• Solid integrated brass machined cage, high temperature resistance, no deformation or roller scattering under long-time high-temperature hot rolling working environment.
• Separable inner ring split structure, inner ring can be pulled out independently without disassembling the whole roll frame, greatly shorten mill roll replacement downtime.
• C4 enlarged internal clearance standard reserved for hot roll thermal expansion, effectively avoid bearing seizure failure caused by high-temperature roll thermal expansion extrusion.
• Deep superfinished raceway surface with low friction coefficient, reduce heat accumulation during continuous high-speed rolling, extend grease service cycle and bearing overhaul interval.
• Full integral quenching heat treatment reaches HRC60–65 high hardness, excellent anti-peeling and anti-fatigue performance, adapt long-time 24-hour uninterrupted rolling production line.
• Comprehensive customized service: P4 super precision upgrade, C3 cold rolling clearance adjustment, OEM laser marking on outer ring, wooden case anti-rust export packaging, high-temperature resistant extreme pressure grease pre-filling.

4. Application Scenarios

502894B / 160RV2301 / 314190 interchangeable four-row rolling mill bearings are core ultra-heavy load rotating spare parts for metallurgical steel rolling equipment:

• Hot strip rolling mill, medium plate rolling mill work roll support bearing assemblies
• Cold rolling mill, galvanized steel coil production line rolling roll matching units
• Medium-small steel plant rebar, wire rod continuous rolling mill roll bearing positions
• Non-ferrous metal aluminum, copper strip rolling mill heavy load rotating components
• Heavy metallurgical forging auxiliary rolling equipment, continuous casting machine roller support bearings
• Aftermarket fully interchangeable universal four-row mill roller bearing series
• Cost-effective high-temperature anti-impact rolling mill bearing solution for steel plant maintenance workshops, metallurgical equipment OEM and global metallurgical spare parts dealers bulk procurement.

5. Why Choose GQZ Bearing

• 25 years professional manufacturing experience of interchangeable four-row rolling mill bearings including 502894B, 160RV2301 and 314190
• Three model codes fully dimensionally interchangeable with original imported mill bearings, consistent load rating, high-temperature resistance and C4 clearance rolling mill matching standards.
• Complete OEM & ODM customization service supporting P4 super precision grade, C3/C4 adjustable clearance and high-temperature extreme pressure grease filling.
• Strict full pre-delivery inspection flow: GCr15 raw material metallographic & hardness test, roller dimensional sorting screening, long-cycle high-temperature alternating rolling impact aging test, continuous hot fatigue wear simulation test.
• Professional rolling mill bearing engineering team provides one-on-one mill model matching, circulation lubrication scheme and roll disassembly installation technical guidance within 24 working hours.
• Stable large-scale mass production workshop with competitive factory direct bulk wholesale price for mixed orders of three interchangeable model codes, long-term stable supply for global metallurgical steel plant buyers.
• We specialize in four-row ultra-heavy load mill bearing structure, solid brass high-temperature cage design, multi-brand interchangeable universal dimension standard and long-term win-win cooperation with metallurgical rolling equipment spare parts suppliers.

6. Quality Control

• Raw material chemical composition, internal flaw and hardness inspection for GCr15 bearing steel inner/outer ring and roller blanks
• Precision ring forging, multiple tempering stress relief, ultra-deep precision grinding process for rolling mill raceway surface
• Cylindrical roller high-temperature quenching, superfinishing and high-precision automatic dimensional sorting production line
• Solid brass cage integral precision turning & drilling forming process, strictly control roller assembly gap and circumferential uniformity
• Targeted classified performance testing: Long-cycle high-temperature heavy rolling impact aging test, repeated strip steel extrusion fatigue test, circulating oil high-temperature sealing durability detection
• Full dimensional tolerance, surface crack and roughness recheck before anti-rust oil coating and export wooden case moisture-proof packaging shipment
• Every production batch of interchangeable mill bearings undergoes full sampling hot rolling mill simulation rotation test to guarantee stable long-term ultra-heavy load high-temperature support performance in 24-hour continuous steel rolling production lines.

7. Get A Quote Now

If you need interchangeable 502894B, 160RV2301, 314190 four-row cylindrical roller mill bearings for hot/cold rolling mill maintenance and metallurgical steel rolling equipment OEM bulk matching, send your purchase inquiry directly.

You will receive full professional supporting services after submitting inquiry:

• Fast official factory sealed formal quotation reply within 24 working hours
• One-on-one mill model matching, clearance grade selection and circulation lubrication technical guidance from professional rolling mill bearing engineers
• Customized bearing performance solutions including P4 super precision upgrade and high-temperature extreme pressure grease options
• Competitive direct factory bulk wholesale price for mixed batch delivery of three interchangeable model codes
• Provide your required purchase quantity, rolling mill type (hot/cold rolling) and continuous high-temperature production working environment to obtain detailed formal quotation document.

8. FAQ