YAR204-2F Set Screw Insert Bearing 20mm Metric 2F Double Flinger Sealed Double Extended Inner Ring

1. Product Overview

YAR204-2F heavy-duty spherical outer insert bearing with dual set screw locking structure, standard metric 20mm cylindrical bore, double-side extended inner ring design, compatible with UCP204, UCT204 and T204 sliding take-up bearing housings for small grain harvesters, light mining conveyors and open-air light industrial machinery.
Suffix `2F` stands for dual-side steel centrifugal flinger + multi-lip NBR rubber composite sealing system, stronger isolation against mud, crop debris and splashing rainwater than ordinary single rubber seals, optimized for dusty outdoor farm and workshop environments.
Spherical outer ring provides ±3° self-aligning compensation to offset shaft bending, housing machining errors and assembly misalignment. Double widened inner ring restricts inner ring tilt on 20mm shafts, effectively lowering running vibration and noise during long continuous operation. Two 120° separated set screws lock the shaft firmly, preventing inner ring slipping for both forward and reverse rotation equipment. Independent side grease fitting supports regular supplementary lubrication without full bearing disassembly. Pre-filled high-viscosity anti-wear lithium grease adapts to humid, dusty farm and workshop working conditions. All rolling components adopt fully quenched high-purity bearing steel with mirror superfinished raceway, delivering stable impact resistance and long service life. Widely applied to small grain sorting conveyors, mini feed mixing machines, light lawn mowers, small quarry belt conveyors and all light-load rotary devices with 20mm metric transmission shafts.

2. Technical Specifications

3. Core Advantages

• Double-side extended inner ring limits inner ring deflection on 20mm shafts, greatly reduces vibration and running noise during continuous operation, operates more stably than single-side widened insert bearings.
• Premium 2F dual steel flinger composite sealing system: outer steel flinger blocks mud clods and crop residues, inner multi-lip rubber seal isolates fine dust and splash water, perfectly suitable for outdoor farm, garden and small quarry harsh environments.
• Dual set screw locking design distributes clamping force evenly on 20mm metric shaft, reliable anti-slip performance under continuous slight vibration, applicable to both unidirectional and bidirectional rotation equipment.
• Spherical outer ring self-aligning function automatically compensates assembly deviation and shaft deflection, reduces extra shaft bending stress and local raceway peeling wear.
• Independent side relubrication grease nipple supports on-site grease replenishment without removing the whole bearing unit, cuts maintenance downtime during seasonal agricultural production rush periods.
• Fully quenched bearing steel rolling elements reach HRC60–65 hardness, excellent anti-indentation and fatigue resistance, extends service life of light-load conveyor tension rollers.
• Standard universal spherical outer dimension, fully interchangeable with global YAR204-2F series double extended inner ring set screw insert bearings, direct replacement for all standard 204 series bearing housings without structural modification.
• Comprehensive customized service: P6 high precision upgrade, stainless steel anti-corrosion variant, OEM laser marking on outer ring, neutral export carton anti-rust packaging, pre-filled high-temperature heavy-duty lithium grease.

4. Application Scenarios

YAR204-2F double 2F steel flinger sealed double extended inner ring set screw spherical insert bearing is premium dust-proof self-aligning rotary spare part for light agricultural, small mining and light industrial conveyor equipment with 20mm metric shafts:

• Small grain harvester auxiliary rollers, mini grain sorting conveyor tension bearing assemblies with 20mm metric shafts
• Small feed mixing machines, household livestock breeding small production line wet-dust transmission matching units
• Light-duty lawn mowers, small orchard picking mobile machinery low-speed light-load rotary support positions
• Small quarry belt conveyors, construction waste sorting light outdoor roller tension components
• Small farm irrigation fans, mini fertilizer spreaders, greenhouse small automatic transport vibration bearings

Aftermarket interchangeable YAR series double extended inner ring 2F flinger sealed set screw metric insert bearing
Anti-dust anti-splash vibration resistant light-duty metric bearing solution for small agricultural machinery manufacturers, light conveyor OEMs and farm maintenance shops bulk procurement.

5. Why Choose GQZ Bearing

• 25 years professional manufacturing experience of YAR series double extended inner ring set screw spherical metric insert bearings including YAR204-2F
• YAR204-2F fully dimensionally interchangeable with international standard YAR204-2F insert bearings, consistent light load rating, 2F composite flinger sealing performance and set screw locking tolerance standards.
• Complete OEM & ODM customization service supporting P6 precision grade and outdoor dust-resistant special grease filling.
• Strict full pre-delivery inspection process: GCr15 raw material metallographic & hardness test, steel ball dimensional sorting screening, long-cycle continuous vibration rotation aging test, repeated mud splash 2F seal fatigue wear simulation test.
• Professional insert bearing engineering team provides one-on-one radial-axial composite load calculation, UCP204/T204 housing matching selection and set screw installation torque technical guidance within 24 working hours.
• Stable mass production workshop with competitive factory direct bulk wholesale price for large-volume single-model orders, long-term stable supply for global light agricultural and small mining conveying machinery spare parts buyers.

We specialize in double sides widened inner ring dual set screw locking metric-bore insert bearing structure, advanced 2F steel flinger multi-layer composite dust-proof sealing + relubrication design, universal interchangeable spherical mounting dimension standard and long-term win-win cooperation with outdoor light-duty transmission equipment suppliers.

6. Quality Control

• Raw material chemical composition, internal flaw and hardness inspection for bearing steel inner ring, outer ring and steel ball blanks
• Insert bearing precision integral forging, multiple tempering stress relief, multi-step ultra-precision spherical outer ring and inner deep raceway grinding process
• Steel ball high-temperature quenching, mirror polishing and high-precision automatic dimensional sorting production line
• Dual set screw precision tapping and surface finishing; 2F steel flinger + multi-lip rubber composite seal press fitting and M6 grease nipple thread tapping assembly
• Targeted performance testing: YAR204-2F long-cycle dust vibration rotation aging test, repeated mud splash flinger sealing durability test, continuous low-speed anti-slip wear detection
• Full dimensional tolerance, surface burr and composite sealing tightness recheck before anti-rust oil coating and export carton moisture-proof packaging shipment

Every production batch of YAR204-2F bearings undergoes full sampling small agricultural harvester light conveyor roller vibration simulation rotation test to guarantee stable long-term dust-proof anti-slip rotary support performance in outdoor farm and small mining conveyor systems with 20mm metric transmission shafts.

7. Get A Quote Now

If you need YAR204-2F double 2F steel flinger sealed 20mm metric bore double extended inner ring set screw spherical insert bearings for light agricultural machinery manufacturing, light conveyor tension unit assembly and farm/small mining equipment maintenance bulk matching, send your purchase inquiry directly.
You will receive full professional supporting services after submitting inquiry:

• Fast official sealed formal quotation reply within 24 working hours
• One-on-one radial-axial composite load calculation, UCP204/T204 bearing housing model matching and set screw locking installation torque technical guidance from professional insert bearing engineers
• Customized bearing performance solutions including P6 high precision upgrade and outdoor dust-resistant grease options
• Competitive factory direct bulk wholesale price for large-volume YAR204-2F single model orders

Provide your required purchase quantity, equipment working environment (outdoor dust/mud/splash water vibration) and continuous operating temperature to obtain detailed formal quotation document.

8. FAQ