Ujk Pillow Block Bearings UCP/Ucf Series, Metric & Inch Sizes for Global Supply

• Customization: Available
• Vibration: Zv1 Zv2 Zv3
• Hardness: HRC60--62
• Cage: Steel Nylon Brass
• Material: Chrome Steel Gcr15
• Service: OEM
• Grease: Sheel Great Wall
• Precision: P0 P6 P5
• Package: Industry or Single Box
• Transport Package: Industry or Single Box
• Specification: Standard
• Trademark: UJK
• Origin: China
• HS Code: 84821020
• Production Capacity: 100000

Product Description

  

Product Description

 

UJK Pillow Block Bearings with Insert Spherical Outer Ring: Technical Overview

1. Product Overview & Core Features

UJK pillow block bearings integrate a spherical outer ring ball bearing with a robust housing (cast iron or stamped steel), forming a pre-assembled unit. Designed for simplicity in installation and misalignment compensation (±1°-3°), they excel in applications with shaft deflection, housing inaccuracies, or harsh environments (e.g., mining, agriculture, conveyors). Key attributes include:

• Self-Aligning Capability: Compensates for shaft/housing misalignment via a spherical outer ring seated in the housing's concave surface13.

• Sealed & Lubricated for Life: Dual-lip seals (or triple-lip in advanced models) prevent contaminant ingress; pre-greased at the factory for maintenance-free operation310.

• Mounting Versatility: Three fixation methods:

  • Set Screw Locking (UC/UB series): For moderate-vibration scenarios14.

  • Eccentric Collar (UEL/UE series): Resists rotation slippage in unidirectional drives37.

  • Tapered Adapter Sleeve (UK+H series): Handles high speeds/vibration with enhanced stability15.

 

2. Major Series & Technical Specifications

UJK's range covers standard and heavy-duty variants. Below summarizes key series:

Series	Fixation Method	Shaft Dia. (mm)	Housing Types	Dynamic Load (Cr)	Static Load (Cor)	Typical Applications
UC200/300	Set screw	15-90	UCP (Pillow), UCF (Flange)	12-220 kN	6.5-235 kN	Conveyors, Fans19
UK200/300+H	Tapered sleeve	17-100	UKP, UKK (Slider Block)	18-585 kN	9.5-1,500 kN	High-vibration machinery58
UEL200/300	Eccentric collar	20-95	UELP, UCT	10-335 kN	5.5-855 kN	Agricultural equipment37
SB/SA Series	Light-duty set screw/eccentric	17-40	Stamped steel housings	5.5-95 kN	2.5-105 kN	Packaging, textile machines38

Notes:

• Housing Compatibility: Includes square, diamond, circular, and slider-block designs for flexible mounting110.

• Load Ratings: UC/UK series support moderate-to-heavy radial loads; axial loads ≤20% of radial capacity4.

 

3. Technical Advantages

• Reduced Installation Complexity: Pre-assembled units eliminate alignment steps, cutting downtime by 30%610.

• Enhanced Durability: High-carbon chromium steel (GCr15) rings + hardened cages withstand shock loads in mining/construction48.

• Environmental Resistance: Triple-lip seals (optional) extend service life in dusty/wet conditions (e.g., farm machinery)310.

• Speed & Temperature Limits:

  • Grease-lubricated: ≤3,000 rpm

  • Oil-lubricated: ≤4,500 rpm8

 

4. Typical Applications

• Material Handling: Conveyor rollers (UCP/UC series)19.

• Agriculture: Harvesters, tillers (UEL/SA series for vibration damping)35.

• Industrial Machinery: Pumps, compressors (UK+H series for high-speed stability)48.

• Food/Pharma: Stainless steel variants resist corrosion in washdown environments6.

 

5. Quality Assurance & Support

UJK bearings adhere to ISO 15:2011 for dimensional accuracy and ISO 15242-2 for vibration testing68. Custom solutions include:

• Sealing Upgrades: Triple-lip seals for extreme particulates.

• Material Options: Stainless steel (SS304/316) or coated housings for corrosion resistance10.

• Global Compliance: Meets ANSI/ABMA and DIN 628 standards for cross-platform compatibility.

 

Why Choose UJK? → Simplified installation, uncompromised reliability in misaligned systems, and tailored solutions for heavy-industry challenges. For full catalogs (e.g., load tables, CAD models), contact UJK Engineering Support.