HM926749/HM926710 Inch Single Row Tapered Roller Bearings 127.792x228.6x53.975mm

HM926749/HM926710 is a complete inch size single row separable tapered roller bearing assembly, composed of inner cone HM926749 and outer cup HM926710. It adopts imperial standard dimension, widely used for heavy-duty truck axle, mine transportation vehicle wheel hub and heavy industrial reducer transmission positions.
The inclined tapered roller raceway structure can simultaneously bear huge radial load and one-way axial thrust. Split separable cone and cup design allows separate installation of shaft and bearing housing, greatly simplifying disassembly, maintenance and preload adjustment of heavy vehicle axles. All cone, cup and tapered rollers are made of fully quenched GCr15 bearing steel with ultra-precision mirror grinding raceway. Even line contact stress distribution provides excellent resistance to alternating heavy impact load during long-distance transportation and mining rough road operation. It can match double sets back-to-back installation to bear bidirectional axial force, stable and reliable for heavy load long-time continuous operation.

Complete set model: HM926749 (cone) + HM926710 (cup)
Imperial converted metric dimensions(mm): Bore d=127, Outer D=228.6, Total width T=53.975
Cone width B=49.212, Cup width C=34.925
Minimum fillet radius r=3.2mm
Structure: Single row tapered roller bearing, separable cone & cup, stamped steel cage, open style
Raw material: GCr15 high carbon chromium bearing steel for all rolling components
Basic dynamic radial load Cr: 468kN
Basic static radial load C0r: 725kN
Fatigue load limit Pu: 73kN
Limiting rotating speed: Grease 2200 r/min, Oil 2900 r/min
Whole set net weight: 7.86kg
Load factor: e=0.42, Y=1.43, Y0=0.78
Working temperature range: -40℃ ~ 120℃
Mounting shoulder reference: da max=142mm, Da min=204mm, Da max=213mm
Heavy truck axle installation drawings, load matching guide and long-cycle alternating impact durability test reports can be provided on customer request.

• Standard inch size interchangeable assembly, HM926749 cone and HM926710 cup fully matched, one complete set meets heavy vehicle axle assembly demand, no extra part matching work.
• Large contact angle tapered roller layout, outstanding composite radial-axial load capacity, stable operation under heavy cargo bump impact and frequent start-stop of mining transport vehicles.
• Separable split structure, inner cone pre-installed on axle shaft, outer cup pressed into wheel hub separately, convenient overhaul without damaging shaft journal and hub bore.
• High rigidity stamped steel cage firmly limits tapered rollers, avoid roller skew and shedding under long-time variable heavy load running.
• Overall quenching heat treatment reaches HRC60-65 high hardness, superior anti-fatigue, anti-peeling and wear resistance, extend heavy truck axle maintenance cycle obviously.
• Ultra-smooth superfinished rolling surface, low friction coefficient, control heat accumulation during continuous high-load driving, prevent axle oil overheating and bearing seizure failure.
• Unified universal inch installation dimension, fully interchangeable with global HM series heavy tapered roller bearings, no modification to original axle and hub during replacement.
• Rich customized service: P4/P5 high precision upgrade, C3 enlarged clearance adjustment, OEM laser marking on cup outer surface, neutral export wooden case anti-rust packaging, high temperature extreme pressure grease pre-filling.

HM926749/HM926710 inch heavy-duty tapered roller bearing set is core composite load rotating spare part for heavy vehicles and mining machinery:

• Heavy duty semi-trailer, large cargo truck front and rear wheel hub bearing assemblies
• Mining dump truck, underground transport vehicle axle and walking reducer matching units
• Large agricultural heavy tractor, engineering transport vehicle heavy load axle support positions
• Heavy industrial gear reducer, metallurgical conveying equipment large transmission shaft components
• Heavy marine auxiliary reduction box, large centrifugal pump rotor support bearings
• Aftermarket interchangeable HM series heavy inch tapered roller bearing set
• Cost-effective anti-impact heavy load bearing solution for truck axle manufacturers, mining vehicle OEM and heavy machinery maintenance factories bulk procurement.

• 25 years professional manufacturing experience of HM series inch heavy separable tapered roller bearing sets including HM926749/HM926710
• HM926749 cone and HM926710 cup fully dimensionally interchangeable with international standard heavy tapered roller bearings, consistent composite load rating, speed tolerance and assembly tolerance standards.
• Complete OEM & ODM customization service supporting P4 super precision grade, C3 clearance and high-temperature extreme pressure grease filling.
• Strict full pre-delivery inspection process: GCr15 raw material hardness test, tapered roller dimensional sorting screening, long-cycle radial-axial alternating heavy impact aging test, continuous heavy load fatigue wear simulation test.
• Professional tapered roller bearing engineering team provides one-on-one composite load calculation, double bearing back-to-back preload pairing scheme and heavy truck axle installation technical guidance within 24 working hours.
• Stable large-scale mass production workshop with competitive factory direct bulk wholesale price for large batch complete set orders, long-term stable supply for global heavy vehicle and mining machinery spare parts buyers.
• We specialize in separable cone-cup tapered roller structure, heavy composite radial-axial load resistance design, universal inch interchangeable mounting dimension standard and long-term win-win cooperation with heavy transportation and mining equipment suppliers.

• Raw material chemical composition, internal flaw and hardness inspection for GCr15 bearing steel cone, cup and tapered roller blanks
• Precision forging, multiple tempering stress relief, ultra-precision inclined raceway multi-step grinding process for cone and cup
• Tapered roller high-temperature quenching, superfinishing and high-precision automatic dimensional sorting production line
• Stamped steel cage stamping forming and automatic roller assembly process, strictly control roller assembly clearance and circumferential uniform distribution
• Targeted classified performance testing: HM926749/HM926710 long-cycle composite radial-axial heavy load aging test, repeated mining vehicle bump impact fatigue test, high-temperature grease long-cycle durability detection
• Full dimensional tolerance, surface crack and raceway roughness recheck before anti-rust oil coating and export wooden case moisture-proof packaging shipment
• Every production batch of HM926749/HM926710 bearing sets undergoes full sampling heavy truck axle simulation rotation test to guarantee stable long-term heavy composite load support performance in heavy transport and mining machinery equipment.

If you need HM926749/HM926710 inch heavy separable tapered roller bearing sets for heavy truck axle manufacturing, mining transport vehicle assembly and heavy machinery maintenance 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 composite radial-axial load calculation, double bearing back-to-back pairing preload scheme and heavy axle hub installation technical guidance from professional tapered roller bearing engineers
Customized bearing performance solutions including P4 high precision upgrade and C3 enlarged clearance options
Competitive direct factory bulk wholesale price for large-volume complete set orders
Provide your required purchase quantity, vehicle/equipment type and continuous heavy bump operating environment to obtain detailed formal quotation document.

• Q1: What are HM926749 and HM926710 respectively?
  A1: HM926749 is the inner cone assembly with tapered rollers and steel cage; HM926710 is independent outer cup, the two parts form a complete heavy inch tapered roller bearing set.
• Q2: What working conditions is this bearing set suitable for?
  A2: Designed for heavy load, frequent bump and long-distance continuous running, mainly matched heavy truck axles, mining dump vehicles and large heavy-duty reducers.
• Q3: What is the advantage of separable cone-cup structure for truck axle maintenance?
  A3: Inner cone can be installed on axle shaft first, outer cup pressed into wheel hub separately, easy disassembly without damaging axle journal and hub during axle overhaul.