M272749/10 Inch Double‑Row Tapered Roller Bearing 479.425x679.45mm Cone And Cup Assembly

1. Product Overview

M272749/10 (M272749DW / M272710) is heavy‑duty inch‑size double‑row tapered roller bearing assembly, separable design composed of double‑inner cone assembly M272749DW and single outer cup M272710. Dimensions: 479.425 mm inner bore × 679.45 mm outer diameter × 238.125 mm total width.

This double‑row construction can withstand extremely heavy combined radial load and bidirectional axial thrust load. Separable cone‑cup design allows preload adjustment during installation. Precision ground tapered raceways and rollers realize uniform stress distribution under severe shock and impact conditions. Manufactured from fully quenched GCr15 bearing steel. Widely applied for large mining machinery, heavy industrial gearboxes, metallurgical equipment, heavy‑duty rolling mills and large‑size heavy‑duty rotating units requiring ultra‑high combined radial‑axial load capacity.

2. Technical Specifications

Mounting shoulder dimension drawing, preload adjustment guide and heavy‑load performance test reports can be provided upon customer request.

3. Core Advantages

• Double‑row separable cone‑cup construction, supports ultra‑heavy combined radial and bidirectional axial load, excellent anti‑shock performance for mining and metallurgy working conditions.
• Preload adjustable during assembly, can satisfy different rigidity requirements of heavy‑duty equipment.
• Precision tapered raceway and roller surface grinding, uniform contact pattern, reduce local stress concentration under heavy impact load.
• GCr15 fully quenched bearing steel, outstanding wear‑resistance and contact‑fatigue performance, long service‑life for cyclic ultra‑heavy‑load operation.
• Reinforced stamped steel cage, keep tapered rollers in stable position and prevent roller skew under large vibration and shock.
• Standard inch‑series interchangeable dimension, fully interchangeable with global M272749/10 bearing sets, direct replacement without major housing modification.
• Strict taper‑angle tolerance control, stable contact area after mounting, avoid local over‑heating and premature raceway spalling.
• Rich custom options: P0/P6 precision grade, special anti‑corrosion coating, OEM laser marking on cone / cup, neutral export anti‑rust carton, special high‑temperature heavy‑duty grease filling.

4. Application Scenarios

M272749/10 inch‑size double‑row tapered roller bearing set is ultra‑heavy‑duty separable rotary spare‑part for equipment with 479.425 mm shaft requiring large bidirectional axial‑radial combined load:

• Large mining machinery rotary support assemblies
• Metallurgical rolling mill heavy‑duty shaft bearing units
• Heavy‑duty industrial gearbox main shaft supporting positions
• Large port machinery and heavy processing equipment rotary components
• Other heavy‑industry machinery enduring huge shock, vibration and bidirectional thrust load

Aftermarket interchangeable inch‑series M272749/10 double‑row tapered roller bearing

Ultra‑heavy‑load impact‑resistant bearing solution for mining equipment manufacturers, metallurgical machinery OEMs and heavy‑industry equipment maintenance bulk‑procurement.

5. Why Choose GQZ Bearing

• 25‑years manufacturing experience of large‑size inch‑series double‑row tapered roller bearings including M272749/10.
• M272749/10 full‑set dimensionally interchangeable with international‑standard counterparts, consistent dynamic/static load rating, taper angle and dimensional tolerance standards.
• Complete OEM & ODM custom service covering multi‑precision‑grade, surface anti‑corrosion treatment and special heavy‑duty grease filling.
• Strict pre‑shipment QC: GCr15 raw‑material metallurgy & hardness inspection, roller sorting screening, long‑cycle heavy‑impact rotation aging test, contact‑pattern inspection after assembly.
• Professional large‑size tapered‑roller‑bearing engineering team provides one‑on‑one combined‑load calculation, pre‑load adjustment guidance and heavy‑unit installation torque tips within 24 working hours.
• Large‑scale heavy‑bearing production workshop offers competitive factory‑direct bulk‑wholesale price, stable long‑term supply for global mining, metallurgy and heavy‑industrial machinery spare‑part buyers.

We specialize in large‑size inch‑series double‑row separable tapered roller bearings, precise taper‑angle control, universal interchangeable dimensions, pursuing win‑win long‑term cooperation with ultra‑heavy‑load industrial‑equipment suppliers.

6. Quality Control

• Raw‑material chemical‑composition, internal‑defect and hardness inspection for GCr15 double‑inner cone, cup and tapered roller blanks
• Precision turning, multiple stress‑relief tempering, ultra‑precision grinding for tapered raceway and roller surfaces
• Tapered roller high‑temperature quenching, mirror‑polishing and high‑precision auto‑sorting production‑line
• Stamped‑steel cage stamping & riveting, cone‑cup matching inspection, contact‑pattern checking assembly process
• Targeted performance‑tests: M272749/10 long‑cycle ultra‑heavy‑impact rotation aging test, combined radial‑axial load fatigue wear‑detection
• Full re‑check for dimension‑tolerance, taper‑angle, surface‑finish before anti‑rust‑oil coating and export moisture‑proof‑carton / wooden‑case packing.

Each production batch of M272749/10 undergoes heavy‑mill‑simulation cyclic‑rotation test to guarantee stable ultra‑heavy‑load anti‑impact rotary‑support performance for large‑size heavy‑industrial shaft systems.

7. Get A Quote Now

If you need M272749/10 inch‑size double‑row tapered roller bearing sets for mining / metallurgy machinery manufacturing, heavy‑equipment‑assembly and heavy‑industry‑maintenance bulk‑matching, send your purchase‑inquiry directly.

Full professional supporting‑services after inquiry submission:

• Official formal quotation reply within 24 working‑hours
• One‑on‑one radial‑&‑axial‑combined‑load calculation, pre‑load adjustment and large‑bearing installation technical‑support from professional‑bearing‑engineers
• Custom‑bearing‑performance‑upgrade options including multi‑precision‑grade and special‑heavy‑duty‑grease
• Favorable factory‑direct bulk‑wholesale price for large‑volume M272749/10 single‑model‑orders

Please provide purchase‑quantity, working‑conditions (ultra‑heavy impact / vibration / operating temperature) to get detailed official‑quotation‑documents.

8. FAQ