UCFL Pillow Block Units
UCFL Pillow Block Units
Loading...
No products found
Engineering Guide to UCFL Series: 2-Bolt Oval Flanged Bearing Units
UCFL Series (2-Bolt Rhombic/Oval Flanged Units) are widely adopted mounted bearing assemblies designed for structural installations where mounting space is restricted. By utilizing a two-bolt configuration instead of the standard four-bolt square pattern (UCF series), UCFL units offer exceptional compactness while providing dependable radial and axial load support.
In this technical whitepaper from Kamyar Gostar Iranian Industrial Group (DKFL), we analyze the mechanical properties, dimensional parameters, and structural metallurgy of the UCFL series.
1. Engineering Advantages of UCFL 2-Bolt Housings
- Compact Footprint: The elongated diamond/oval geometry reduces center-to-center clearance between adjacent shafts on multi-axis conveyor drive systems.
- Simplified Installation: 2-bolt mounting reduces machining and assembly cycle time while simplifying angular adjustment during alignment.
- Self-Aligning Capability: Spherical mating surfaces between the insert bearing outer ring and the FL cast housing accommodate initial mounting misalignments.
- Optimized Structural Weight: Redundant cast sections found in square flanges are eliminated, decreasing total assembly weight.
2. Technical Data & Dimensions: UCFL 200 Series (DKFL Standard)
Critical boundary dimensions for standard medium-duty UCFL units produced under German-standard technical supervision by DKFL:
| Unit Code | Shaft Dia. (mm) | Length L (mm) | Bolt Pitch J (mm) | Bolt Size | Housing Code | Insert Bearing |
|---|---|---|---|---|---|---|
| UCFL 204 | 20 | 113 | 90 | M10 | FL 204 | UC 204 |
| UCFL 205 | 25 | 130 | 99 | M14 | FL 205 | UC 205 |
| UCFL 206 | 30 | 148 | 117 | M14 | FL 206 | UC 206 |
| UCFL 207 | 35 | 161 | 130 | M14 | FL 207 | UC 207 |
| UCFL 208 | 40 | 175 | 144 | M14 | FL 208 | UC 208 |
| UCFL 210 | 50 | 197 | 157 | M16 | FL 210 | UC 210 |
3. Metallurgy & Quality Standards
DKFL FL-series housings are manufactured from high-grade grey cast iron HT200 / GG20, stress-relieved to mitigate dynamic vibration and enhance structural integrity. The matched UC insert bearings are fabricated from vacuum-degassed GCr15 (100Cr6) chrome steel, through-hardened to 60-64 HRC, and fitted with dual-lip contact sealing systems for maximum contaminant resistance.
4. Typical Applications
- Material handling equipment and conveyor side-frame assemblies
- Agricultural machinery (harvesters, balers, processing plants)
- Food processing and packaging machinery with tight frame clearances
- Industrial ventilation fans and vertical blowers
5. Frequently Asked Questions (FAQ)
What is the main difference between UCFL and UCF bearing units?
UCF units feature a square 4-bolt flange providing maximum torsional stability for heavy-duty applications. UCFL units feature a compact 2-bolt oval flange, designed for installations where lateral space is constrained and weight reduction is advantageous.
Can DKFL UCFL bearing units be relubricated?
Yes, all DKFL FL housings are equipped with a standard grease nipple (M6 or 1/4-28 UNF) combined with an internal lubrication groove for efficient grease distribution.