Integral Tapered Roller Bearing With One Seal JKOS080A 80x125x30mm

JK0S080-A belongs to JK0S metric integral tapered roller bearing series, single lip rubber seal on one side of outer ring, integrated cone and cup matched assembly, unified core dimension inner bore d=80mm, outer diameter D=125mm, inner ring width B=30mm, outer ring width C=29.5mm, diameter series 0 compact heavy-load design.

Suffix A stands for single sealed reinforced grade: built-in single lip contact seal structure, effectively block dust, metal debris and splashed lubricating oil from entering bearing interior, reduce grease loss, adapt to medium-dust working environments without extra housing sealing design. Integral separable cone & cup structure, inner ring + tapered rollers + plastic cage assembly can be fully separated from outer cup, convenient preload adjustment, independent component replacement and field maintenance of gearbox and axle assemblies.

All rings and rolling elements adopt integral quenched GCr15 high-carbon chrome bearing steel, precision logarithmic roller contact curve grinding, uniform roller sorting, featuring high hardness, strong wear resistance and anti-fatigue performance. Widely applied to medium-sized industrial gear reducers, construction machinery drive axles, heavy agricultural harvesters, mining conveying equipment and wind power auxiliary reduction boxes.

Complete installation drawings, load characteristic curves and dust resistance accelerated test reports can be provided upon customer request.

1. Exclusive single lip sealed integrated design, one-side contact rubber seal effectively block external dust and impurities, reduce frequent refueling frequency, save auxiliary sealing part cost for gearbox housing
2. Standard JK0S series compact outline size, high combined radial-axial load capacity under limited installation space, perfect matching for medium-size heavy-duty transmission assemblies
3. Separable cone & cup split structure, damaged inner or outer component can be replaced independently without complete transmission disassembly, greatly cut maintenance downtime and spare part cost
4. Precision superfinished cone raceway + logarithmic optimized roller contact curve, low friction torque, stable low-vibration rotation under alternating forward-reverse impact load, small temperature rise during long continuous operation
5. Dual cage options: standard plastic cage lightweight and cost-effective for general medium-heavy load scenarios; solid brass cage anti-deformation for long-time high-temperature uninterrupted production lines
6. Full customizable service: C3 enlarged radial clearance, P5 high precision grade, OEM laser marking, special high-temperature anti-oxidation grease filling, neutral export packaging
7. Strict integral quenching stress relief heat treatment, uniform internal material strength, effectively delay raceway peeling and roller abrasion failure, extend equipment overhaul cycle by over 25% compared with open unsealed bearings

JK0S080-A single sealed integral tapered roller bearing is core replacement wear spare part for medium-size heavy industrial rotary equipment:

• Medium horizontal/vertical industrial gear reducers, mining belt conveyor head transmission support assemblies
• Medium loader, road roller, small excavator drive axle positioning bearing units
• Heavy agricultural harvesters, large tractor heavy-duty drive shaft transmission bearings
• Small wind power auxiliary reduction box, medium port lifting machinery rotary positioning components
• Metallurgical light rolling mill auxiliary transmission shafts, large industrial mixer main drive system wearing parts
• Aftermarket interchangeable 80mm bore JK0S series single sealed integral tapered roller bearing
• Cost-effective dust-proof heavy-load bearing solution for gearbox OEM, construction machinery repair factory and agricultural equipment bulk matching

• 25 years professional manufacturing experience for JK0S series sealed integral tapered roller bearings
• JK0S080-A fully dimensionally interchangeable with international standard JK0S series bearings, consistent outline size, load rating and assembly tolerance indicators
• Complete OEM & ODM customization service supporting brass cage, C3 clearance upgrade, high precision grade and special high/low temperature lubricant customization
• Full strict pre-delivery inspection: raw material hardness test, cone raceway grinding precision inspection, sealing lip wear resistance test, heavy load reciprocating impact fatigue cycle test
• Professional tapered bearing engineering team provides shaft and housing tolerance matching installation guidance within 24 hours
• Stable mass production lines with favorable bulk wholesale prices for long-term medium gearbox manufacturers, construction machinery and agricultural equipment suppliers
• We focus on sealed dust-proof integrated design, strong radial-axial combined load capacity, separable easy-maintenance structure and long-term win-win cooperation with global medium transmission equipment spare parts buyers

• Raw material chemical composition and surface hardness inspection of GCr15 chrome bearing steel
• Precision turning, quenching tempering and mirror superfinishing processing for inner and outer ring cone raceways
• Exclusive single lip sealing groove precision turning process to ensure seal lip tight contact with inner ring surface
• Classified targeted performance testing: JK0S080-A long-cycle accelerated load aging test, dust environment continuous operation wear resistance test, high-speed low friction torque temperature rise detection
• Tapered roller sorting, plastic/brass cage assembly, seal lip tightness inspection, full dimensional and appearance recheck before anti-rust oil packaging and shipment
• Each batch of JK0S080-A bearings passes full sampling heavy-load reciprocating rotation fatigue test to guarantee stable long-term operation inside medium industrial reduction transmission equipment

If you need dust-proof single sealed JK0S080-A integral tapered roller bearings for medium gearbox, construction and agricultural equipment maintenance and OEM matching, send your inquiry directly.

You will receive complete professional supporting services after submitting your inquiry:

• Fast official factory quotation reply within 24 hours
• One-on-one shaft & housing matching tolerance installation technical guidance from professional JK0S series tapered bearing engineers
• Customized bearing scheme suggestions including brass cage and C3 enlarged clearance upgrade options
• Competitive direct factory bulk wholesale price for large spare parts bulk orders
• Send your required purchase quantity and equipment continuous speed, heavy-load & dust working environment to obtain detailed formal quotation

1. Q1: What is the structural feature of JK0S080-A bearing?
   A1: It is JK0S series integral tapered roller bearing with single lip rubber seal on outer ring one side, cone and cup separable assembly, built-in lightweight plastic cage, good dust-proof performance for medium dust working conditions.
2. Q2: What loads can JK0S080-A bear?
   A2: It can bear combined heavy radial load plus unidirectional axial thrust load; bidirectional axial positioning requires two bearings installed back-to-back or face-to-face with reasonable preload.
3. Q3: What is the difference between JK0S080-A and open unsealed tapered roller bearings?
   A3: JK0S080-A adds single-side contact seal, can block dust and debris without extra external sealing structure, reduce lubricant loss and extend grease service cycle, suitable for semi-open gearboxes and construction machinery axles.