UCP310 Heavy Duty Pillow Block Bearing Unit 50mm Bore Cast Iron UC310 Set Screw Lock Mounted Bearing

1. Product Overview

UCP310 is heavy-duty two-bolt pillow block bearing unit, assembled by P310 cast iron housing and UC310 spherical outer ring insert bearing, standard matching shaft bore size 50mm.

Model Code Explanation:

• UC: Insert bearing with spherical outer surface deep groove ball structure, widened inner ring with double set screw locking structure
• P: Two-bolt vertical pillow block cast iron housing
• 310: Heavy-duty 300 series mounted bearing, applicable shaft diameter 50mm

The insert bearing features spherical outer surface, matched with spherical inner bore of housing to realize self-aligning function, which can compensate installation deflection and parallel error of shaft. Double set screws on extended inner ring tightly lock the whole unit on the shaft, realizing quick assembly without extra locking accessories. Equipped with double lip contact rubber seal plus outer dust flinger dual dust-proof structure, factory pre-filled high-temperature extreme pressure lithium grease; a grease nipple is reserved on the housing for supplementary lubrication without disassembly. The housing adopts high-strength HT200 cast iron, with thickened wall reinforced structure, strong resistance to vibration and impact load, stable long-term operation under dusty, humid heavy industrial working conditions. Widely used in large conveyor production lines, agricultural combine harvesters, mining transportation equipment, grain processing machinery, construction concrete mixers and all heavy-load continuous rotating transmission equipment.

2. Technical Specifications

Mounting dimension drawings, heavy-load conveyor assembly matching guides and dust-proof long service life durability test reports can be provided according to customer requirements.

3. Core Advantages

1. Integrated pre-assembled unit design, insert bearing and cast iron housing are perfectly matched in advance, only need to fix the housing on the equipment base with bolts on site, greatly shorten field assembly time.
2. Spherical outer self-aligning matching structure, automatically absorb shaft installation deflection error, avoid premature bearing wear caused by misalignment and abnormal heating.
3. Double set screw locking on widened inner ring, uniform clamping force distribution, effectively prevent inner ring slipping on the shaft under frequent start-stop impact load, stable torque transmission.
4. Heavy-duty thick-wall HT200 cast iron housing, excellent anti-vibration and anti-impact performance, adapt to severe vibration working conditions such as mining and agricultural farms.
5. Double lip rubber contact seal plus outer dust flinger double-layer protection structure, effectively isolate coal dust, grain powder, mud and moisture, reduce internal raceway abrasive wear and extend service life in dusty workshops.
6. Independent grease nipple reserved on the housing, convenient for on-site supplementary lubrication without disassembling the whole unit, support long-time non-stop operation of equipment.
7. 300 heavy-duty series with large dynamic and static load ratings, higher bearing capacity than standard 200 series, can stably bear large radial load and bidirectional light axial combined load.
8. Multiple customizable options: Triple-lip reinforced dust seal upgrade, full stainless steel insert bearing variant, OEM laser marking on housing outer surface, neutral export anti-rust carton packaging, food-grade white grease filling for grain processing equipment.

4. Application Scenarios

UCP310 heavy-duty self-aligning pillow block bearing unit is high-load rotary support spare part matched with 50mm shaft industrial and agricultural heavy equipment:

• Main shaft support bearing assemblies for inclined belt conveyors, scraper conveyors and screw conveyors
• Transmission positioning units of farm tractors, combine harvesters and grain dryers
• Auxiliary rotating bearing sets of mining aggregate transportation machinery and stone crushers
• Heavy-load transmission support components of concrete mixers and brick making machinery
• Rotary limit bearings for large grain food processing equipment and feed production lines
• Heavy-duty rotating parts of port small transportation machinery and waste recycling equipment

Aftermarket interchangeable UCP300 series cast iron self-aligning pillow block bearing unit

Heavy load dust-proof self-aligning bearing solution for conveyor manufacturers, agricultural machinery OEM factories and mining equipment bulk maintenance procurement.

5. Why Choose GQZ Bearing

We have 25 years of mature professional manufacturing experience for UCP300 series heavy-duty cast iron pillow block bearing units including UCP310 conveyor and mining dedicated models.

Our UCP310 bearing units adopt unified global 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 mounted bearing units.

Complete OEM & ODM customized service system, support multi-structure seal switching, stainless steel insert bearing upgrade, special environment grease filling and personalized housing 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 load vibration rotation aging test, full-batch inspection of housing casting internal defects, sealing dust resistance performance test.

Professional mounted bearing technical team provides one-to-one heavy radial load matching calculation, equipment base 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 UCP series self-aligning pillow block bearing units, strict spherical raceway superfinishing processing and cast iron housing impact resistance quality control, committed to long-term stable win-win cooperation with heavy-load 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 housing precision sand casting, deburring and stress relief treatment process, integral bearing unit assembly clearance inspection, EP anti-wear grease quantitative filling and sealing curing procedure
• Targeted professional performance testing: UCP310 long-cycle conveyor heavy vibration load rotation aging test, mining dust environment anti-pollution durability simulation test, set screw anti-slip torque detection
• Comprehensive re-inspection of overall dimensional tolerance, inner bore roundness and housing bottom flatness before anti-rust oil coating and export moisture-proof carton packaging.

Each batch of UCP310 bearing units will pass large conveyor continuous heavy load cycle simulation test to ensure stable self-aligning, dust-proof and high-load rotary support performance for 50mm shaft heavy industrial transmission systems.

7. Get A Quote Now

If you need UCP310 50mm bore two-bolt cast iron self-aligning pillow block bearing units for conveyor / agricultural mining machinery manufacturing, 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 base mounting installation and periodic supplementary lubrication technical support provided by professional 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 UCP310

Please provide purchase quantity, actual working conditions (continuous heavy vibration load / heavy dust and mud environment / long-time non-stop operation demand) to obtain complete official quotation documents.

8. FAQ