JKOS050 Single Row Sealed Tapered Roller Bearing 50x80x22mm Integral Wheel Hub Bearing

1. Product Overview

JKOS050 (also written JK0S050) is single row integral sealed tapered roller bearing, standard dimension 50mm inner bore × 80mm outer diameter × 22mm inner ring width, outer ring width 21.5mm.

Model Code Explanation:

• JKOS series: Integrated unitized tapered roller bearing with single side lip rubber seal, pre-assembled inner ring, tapered rollers, polyamide cage and outer ring as one complete set
• 050: Matched shaft bore size 50mm

Tapered roller layout enables the bearing to simultaneously bear heavy combined radial and unidirectional axial thrust load. Single-side built-in lip seal blocks dust, mud, concrete powder and gearbox impurity from entering internal raceway, factory pre-filled long-life extreme pressure grease to realize long-term maintenance-free operation. Integral unit structure eliminates separate component matching work during assembly, greatly improves production efficiency. Widely applied to concrete mixer truck speed reducer, light vehicle wheel hub, construction machinery gearbox, agricultural tractor transmission, small crane rotating support and all heavy load transmission equipment exposed to dusty harsh working conditionsMade-in-Ch....

2. Technical Specifications

Mounting dimension drawings, mixer reducer assembly matching guides and heavy dust environment durability test reports can be provided on customer request.

3. Core Advantages

1. All-in-one pre-assembled integral unit, inner ring, tapered rollers, cage, outer ring and built-in seal delivered as one whole part, direct press-fit installation without extra parts pairing, cut assembly time significantly.
2. Tapered roller contact structure, excellent capacity to bear combined radial + axial heavy load, stable performance under frequent alternating impact load of mixer reducer.
3. Single-side reinforced lip contact rubber seal, good mud and dust barrier performance, prevent abrasive concrete dust and metal debris from abrading raceway and rollers, extend service life under outdoor harsh environment.
4. Factory pre-filled high-temperature anti-wear EP grease inside sealed cavity, effectively avoid grease leakage and dry friction during long-term vibration rotation, realize maintenance-free daily operation.
5. Reinforced polyamide injection cage firmly locks each tapered roller, eliminate roller skew, edge stress concentration and abnormal noise under heavy load and vibration.
6. Super-finished raceway and tapered roller surfaces, low friction coefficient, reduce heat accumulation during continuous low-speed heavy-load rotation, avoid bearing ablation failure.
7. Unified interchangeable industry standard dimension, fully compatible with global mainstream JKOS050 sealed tapered roller bearings, direct replacement without modifying reducer housing and shaft structural size.
8. Rich customizable options: Double lip seal upgrade, stainless steel anti-corrosion variant, snap ring BR80 matching, OEM laser marking on outer ring, neutral export anti-rust carton packaging, high-temperature resistant special grease pre-filling.

4. Application Scenarios

JKOS050 sealed integral tapered roller bearing is heavy combined load spare part specially matched with 50mm shaft industrial and construction equipment:

• Concrete cement mixer truck speed reducer internal support bearing assemblies
• Light commercial vehicle, small truck wheel hub rotary positioning bearing units
• Mini excavator, road roller engineering machinery gearbox transmission parts
• Farm tractor power take-off heavy load shift bearing sets
• Small tower crane, lifting equipment rotating support limiting components
• Printing machinery, industrial heavy-duty reducer combined load bearing positions

Aftermarket interchangeable JKOS series sealed integral tapered roller bearing

Dust-proof heavy combined load bearing solution for mixer truck manufacturers, construction machinery OEM factories and vehicle transmission bulk maintenance procurement.

5. Why Choose GQZ Bearing

We have 25 years of mature professional manufacturing experience for JKOS series integral sealed tapered roller bearings including JKOS050 mixer reducer dedicated models.

Our JKOS050 bearing units adopt unified international standard dimensions, consistent dynamic/static load parameters, GCr15 quenching heat treatment and injection cage precision standards, fully dimensionally interchangeable with original brand mixer transmission bearings.

Complete OEM & ODM customized service system, supporting multiple clearance groups, single/double lip seal modification, stainless steel raw material upgrade and personalized surface marking demands.

Strict pre-delivery full quality inspection workflow: GCr15 steel raw material composition and hardness test, tapered roller automatic sorting screening, long-cycle alternating radial-axial impact rotation aging test, sealing lip dust resistance full batch inspection.

Professional tapered roller bearing technical team provides one-to-one combined load matching calculation, reducer press-fit tolerance design and long-life grease maintenance guidance within 24 working hours.

Standardized integral taper bearing precision production workshop provides competitive factory direct bulk wholesale price, stable long-term mass supply for global mixer truck, construction machinery and light vehicle spare parts purchasers.

We specialize in JKOS series sealed one-piece tapered roller bearings, strict raceway superfinishing and sealing lip anti-dust quality control, committed to long-term stable win-win cooperation with heavy load construction and vehicle transmission equipment suppliers.

6. Quality Control

• Raw material chemical composition, hardness and fatigue resistance inspection for GCr15 inner/outer ring and tapered roller blanks
• Precision turning forming processing, multiple stress relief tempering cycles, ultra-precision superfinishing grinding for tapered raceway surfaces
• Tapered roller high-temperature integral quenching, mirror polishing and high-precision automatic sorting production line
• Reinforced polyamide cage injection molding forming process, integral bearing assembly gap inspection, anti-wear extreme pressure grease quantitative filling curing procedure
• Targeted professional performance testing: JKOS050 long-cycle mixer reducer alternating combined load rotation aging test, cement dust environment anti-contamination durability simulation test, sealing lip leakage resistance detection
• Comprehensive re-inspection of overall dimensional tolerance, inner bore roundness and sealing flatness before anti-rust oil coating and export moisture-proof carton packaging.

Each production batch of JKOS050 bearings undergoes concrete mixer continuous cycle heavy load simulation test to guarantee stable low-noise dust-proof combined radial-axial support performance for 50mm shaft heavy-duty compact transmission systems.

7. Get A Quote Now

If you need JKOS050 50x80x22 integral single lip sealed tapered roller bearings for cement mixer reducer / construction machinery gearbox manufacturing, heavy transmission assembly and industrial equipment maintenance bulk matching, send your purchase demand directly.

Complete professional one-stop supporting services after sending inquiry:

• Formal official detailed quotation reply within 24 working hours
• One-to-one radial + axial combined heavy load matching calculation, reducer housing press-fit installation and dust-proof long-life lubrication technical support provided by professional tapered roller bearing engineers
• Customized bearing performance upgrade options including C3 enlarged clearance group and double lip reinforced dust seal modification
• Favorable factory direct bulk wholesale price for large quantity single model orders of JKOS050

Please provide purchase quantity, actual working conditions (continuous heavy combined load / dusty cement workshop / low-speed long-time operation environment) to obtain complete official quotation documents.

8. FAQ