UCFC217 Round 4 Bolt Flange Bearing Unit 85mm Bore UC217 Set Screw Lock Cast Iron Mounted Bearing

1. Product Overview

UCFC217 is heavy-duty four-hole round flange mounted bearing unit, assembled by FC217 cast iron round flange housing and UC217 spherical outer insert bearing, standard matching shaft diameter 85mm.

Model Code Explanation:

• UC: Insert deep groove ball bearing with spherical outer surface, widened extended inner ring with double set screw locking
• FC: Round four-bolt flange cast iron housing, convenient for vertical wall and equipment panel installation
• 217: Standard 200 series mounted bearing, applicable shaft bore 85mm

The insert bearing adopts spherical outer ring structure, matched with spherical inner bore of cast iron housing to realize self-aligning function, which can compensate slight shaft installation deflection and parallel error, avoid abnormal heating and premature wear caused by misalignment. Two symmetric set screws on widened inner ring provide uniform clamping force, firmly lock the whole unit on cylindrical shaft, prevent inner ring slipping under frequent start-stop impact torque. Equipped with double lip contact rubber seal plus outer anti-dust flinger double-layer protection, factory pre-filled high-temperature extreme pressure lithium grease; independent grease nipple is reserved on housing for supplementary lubrication without disassembly. Housing adopts high-strength HT200 grey cast iron with thickened wall reinforced structure, strong anti-vibration and anti-impact capacity, stable long-term operation under dusty, humid and heavy-load industrial working conditions. Widely used in large belt conveyors, grain processing equipment, agricultural combine harvesters, mining auxiliary transport machinery, ventilation large fans, packaging heavy production lines and all rotary equipment needing wall-mounted flange installation.

2. Technical Specifications

Mounting dimension drawings, heavy-load conveyor flange assembly matching guides and dust-proof long-life durability test reports can be provided on customer request.

3. Core Advantages

1. Integrated pre-assembled one-piece unit, insert bearing and cast iron flange housing perfectly pre-matched, only need four bolts to fix on equipment wall or panel, greatly shorten on-site assembly time.
2. Spherical outer self-aligning matching structure, automatically absorb shaft installation deflection error within ±3°, eliminate bearing local overload and abnormal heating caused by assembly misalignment.
3. Double set screw locking structure on widened inner ring, symmetrical force distribution, effectively prevent inner ring circumferential slipping on shaft under heavy impact load, stable torque forward and reverse transmission.
4. Round four-bolt thick-wall cast iron flange housing, uniform stress distribution during heavy load operation, excellent anti-vibration and anti-impact performance, adapt to mining, farm and other severe vibration working scenes.
5. Double lip rubber contact seal + outer dust flinger dual isolation structure, effectively block grain powder, coal dust, mud splash and humid water vapor invading internal raceway, reduce abrasive wear and extend service life in polluted workshops.
6. Independent grease nipple reserved on flange side, convenient for regular supplementary lubrication without disassembling the whole unit, support long-time non-stop continuous production of equipment.
7. Standard 200 series heavy load insert bearing, large dynamic and static load rating, can stably bear large radial load and bidirectional light axial combined load, wide applicable load range.
8. Multiple customizable options: Triple-lip reinforced dust seal upgrade, full stainless steel insert bearing variant, OEM laser marking on flange outer surface, neutral export anti-rust carton packaging, food-grade white grease filling for grain food processing equipment.

4. Application Scenarios

UCFC217 heavy-duty self-aligning round four-bolt flange bearing unit is high-load wall-mounted rotary support spare part matched with 85mm shaft industrial and agricultural heavy equipment:

• Wall-mounted main shaft support bearing assemblies of large belt conveyors, screw conveyors and roller conveying lines
• Rotary positioning units of grain dryers, rice milling machines and feed processing production lines
• Side panel transmission bearing sets of agricultural combine harvesters and large farm threshing equipment
• Auxiliary rotating support components of mining aggregate transport machinery and stone screening equipment
• Central shaft limit bearings of industrial large ventilation fans and exhaust equipment
• Heavy-duty rotary parts of automatic packaging machinery and waste recycling processing equipment

Aftermarket interchangeable UCFC200 series cast iron round four-bolt self-aligning flange bearing unit

Dust-proof heavy load wall-mounted bearing solution for conveyor manufacturers, agricultural machinery OEM factories and mining ventilation equipment bulk maintenance procurement.

5. Why Choose GQZ Bearing

We have 25 years of mature professional manufacturing experience for UCFC200 series round four-bolt cast iron flange mounted bearing units including UCFC217 conveyor and grain processing dedicated models.

Our UCFC217 bearing units adopt unified ISO international industrial standard dimensions, consistent dynamic/static load parameters, GCr15 integral quenching heat treatment process and cast iron housing precision casting standards, fully dimensionally interchangeable with mainstream imported brand flange bearing units.

Complete OEM & ODM customized service system, support multi-layer seal structure switching, stainless steel insert bearing upgrade, special high/low temperature environment grease filling and personalized flange surface marking demands.

Strict full-process pre-delivery quality inspection workflow: GCr15 steel raw material hardness test, steel ball automatic sorting screening, long-cycle heavy vibration load rotation aging test, full-batch inspection of housing casting internal sand hole defects, sealing dust isolation performance test.

Professional flange mounted bearing technical team provides one-to-one heavy radial combined load matching calculation, equipment panel flange mounting tolerance design and regular supplementary lubrication maintenance guidance within 24 working hours.

Standardized heavy-duty bearing casting and precision grinding production workshop provides competitive factory direct bulk wholesale price, stable long-term mass supply for global conveyor, agricultural and mining machinery spare parts purchasers.

We specialize in UCFC series round four-bolt self-aligning flange bearing units, strict spherical raceway superfinishing processing and cast iron flange impact resistance quality control, committed to long-term stable win-win cooperation with heavy-load wall-mounted industrial transmission equipment suppliers.

6. Quality Control

• Raw material chemical composition, hardness and fatigue resistance inspection for GCr15 inner/outer ring and steel ball blanks
• Precision turning and integral heat treatment processing, multiple stress relief tempering cycles, ultra-precision superfinishing grinding for spherical outer raceway surfaces
• Spherical steel ball high-temperature integral quenching, nano mirror polishing and high-precision automatic sorting production line
• HT200 cast iron round flange precision sand casting, deburring and stress relief annealing treatment process, integral bearing unit assembly clearance inspection, EP anti-wear grease quantitative filling and sealing curing procedure
• Targeted professional performance testing: UCFC217 long-cycle conveyor heavy vibration load rotation aging test, grain dust mixed humid environment anti-pollution durability simulation test, set screw anti-slip locking torque detection
• Comprehensive re-inspection of overall dimensional tolerance, inner bore roundness and flange mounting flatness before anti-rust oil coating and export moisture-proof carton packaging.

Each batch of UCFC217 bearing units will pass large grain conveyor continuous heavy load cycle simulation test to ensure stable self-aligning, dust-proof and high-load rotary support performance for 85mm shaft wall-mounted heavy industrial transmission systems.

7. Get A Quote Now

If you need UCFC217 85mm bore four-bolt round cast iron self-aligning flange bearing units for conveyor / grain agricultural mining machinery manufacturing, wall-mounted heavy-load 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 heavy radial combined load matching calculation, equipment panel flange mounting installation and periodic supplementary lubrication technical support provided by professional flange mounted bearing engineers
• Customized bearing upgrade options including triple-lip reinforced dust seal modification and full stainless steel insert bearing production
• Favorable factory direct bulk wholesale price for large quantity single model orders of UCFC217

Please provide purchase quantity, actual working conditions (continuous heavy vibration load / heavy dust grain & mud environment / wall-mounted flange installation demand) to obtain complete official quotation documents.

8. FAQ