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Product Description
The UCP205-25MM is a two-bolt pillow block bearing unit from the UCP200 series, combining a cast iron pillow block housing with a UC205-25MM chrome steel insert bearing. Designed for standard-duty industrial applications, the UCP205-25MM accepts a 25mm metric shaft diameter and provides a reliable, economical housed bearing solution across a wide range of industries.
The unit features:
Cast iron housing with anti-rotation device and standard base-to-center height
UC205-25MM insert bearing — self-aligning, wide inner ring, AISI 52100 / GCr15 chrome steel, slinger seal
Two set screws positioned in the inner ring for positive shaft locking
Standard grease fitting for convenient in-service re-lubrication
Compact and lightweight — unit weight ~0.71–0.80 kg, smaller footprint than UCP206 series
Parameter | Inch | Metric | Source |
Model | UCP205-25MM | UCP205-25MM | |
Insert Bearing | UC205-25MM | UC205-25MM | |
Bearing Type | Pillow Block Ball Bearing Unit | Pillow Block Ball Bearing Unit | |
Shaft Diameter (d) | ~0.984" | 25 mm | |
Base to Center Height (h) | 1-7/16" | 36.5 mm | |
Overall Length (a) | 5-1/2" | 140 mm | |
Bolt Spacing (e) | 4-1/8" | 105 mm | |
Housing Width (b) | 1-1/2" | 38.1 mm | |
S2 | 3/4" | 19 mm | |
S1 | 1/2" | 12.7 mm | |
g | 9/32" | 15 mm | |
w (Insert Width) | 2-25/32" | 70.6 mm | |
Bi (Length Through Bore) | 1.3425" | 34 mm | |
n | 0.5630" | 14.3 mm | |
Recommended Bolt | 3/8" | M10 | |
Dynamic Load Rating (Cr) | ~3,148–3,554 lbf | ~14.0–15.8 kN | |
Static Load Rating (Cor) | ~1,731–1,810 lbf | ~7.7–8.05 kN | |
Max Speed | — | 5,850–6,850 RPM | |
Unit Weight | ~1.56–1.76 lb | ~0.71–0.80 kg | |
Housing Material | Cast Iron | Cast Iron | |
Insert Material | AISI 52100 / GCr15 Chrome Steel | AISI 52100 / GCr15 Chrome Steel | |
Seal Type | Slinger Seal | Slinger Seal | |
Locking Method | Two Set Screws | Two Set Screws | |
Self-Aligning | ✅ Yes | ✅ Yes | |
Grease Fitting | ✅ Yes | ✅ Yes | |
Mounting Bolts | 2-Bolt | 2-Bolt | |
Duty Rating | Standard / Normal Duty | Standard / Normal Duty | |
Series | UCP200 | UCP200 |
Brand | Part Number | Notes |
NEXANS / NKS | UCP205-25MM | ✅ AISI 52100 / GCr15 Chrome Steel |
PEER | UCP205-25 | ✅ Direct equivalent |
AMI / ASAHI | UCP205-25 | ✅ Direct equivalent |
Browning | VPS | ✅ Direct equivalent |
NTN | UCP205D1 | ✅ Cross reference |
Seal Master | NP-205 | ✅ Cross reference |
Dodge | P2B-SC-25M (#125852) | ✅ Cross reference |
Link-Belt | P3-U2M25N | ✅ Cross reference |
Fafnir | YAS-25 | ✅ Cross reference |
HCP | HCP205-25MM | ✅ Cross reference |
SKF | UCP 205 | ✅ Cross reference (25mm metric) |
Insert only | UC205-25MM | ✅ Insert bearing component |
Note: UCP205-25MM uses a 25mm metric bore — the standard metric size for the UCP205 series. This is distinct from the fractional inch UCP205-16 (1") variant which uses the same housing but a different insert. Always verify shaft diameter before ordering.
Parameter | UCP205-25MM | UCP206-17 | UCP206-18 | Source |
Bore | 25mm (0.984") | 1-1/16" (26.988mm) | 1-1/8" (28.575mm) | |
Housing Series | UCP205 | UCP206 | UCP206 | |
Center Height (h) | 36.5mm | 42.9mm | 42.9mm | |
Overall Length (a) | 140mm | 165mm | 165mm | |
Bolt Spacing (e) | 105mm | 120.7mm | 120.7mm | |
Bolt Size | M10 / 3/8" | M14 / 1/2" | M14 / 1/2" | |
Dynamic Load (Cr) | ~14.0–15.8 kN | ~19.5 kN | ~19.5 kN | |
Max Speed | 5,850–6,850 RPM | 5,300 RPM | 5,300 RPM | |
Weight | ~0.71–0.80 kg | ~1.51 kg | ~1.51 kg |
The UCP205-25MM is smaller, lighter, and faster than the UCP206 series but carries a lower dynamic load rating. Choose UCP205 for lighter-duty, higher-speed applications; choose UCP206 for heavier radial loads.
✅ Cr≈14.0–15.8 kN / Cor≈7.7–8.05 kN — Multi-Source Confirmed — Load ratings independently verified by SKF, SummitCollars, Amazon/NRB
✅ Max Speed 5,850–6,850 RPM — Higher limiting speed than UCP206 series (5,300 RPM); ideal for fans, blowers, and higher-speed light-duty applications
✅ 25mm Metric Bore — Universal Standard Size — Most common metric shaft size globally; direct drop-in replacement for 10+ major brands including SKF, Dodge, NTN, AMI
✅ Compact & Lightweight Design — Smaller footprint (140mm length, 105mm bolt spacing) and lighter weight (~0.71–0.80 kg) vs UCP206 series; ideal for space-constrained installations
✅ Self-Aligning Design — Accommodates shaft misalignment up to ±2°, reducing installation stress and extending service life in real-world mounting conditions
✅ Cast Iron Housing with Anti-Rotation Device — Prevents insert bearing from rotating within the housing under shock loads or vibration
✅ Two Set Screw Locking — Dual set screws in the wide inner ring provide positive, reliable shaft attachment without requiring keyways
✅ Slinger Seal — Effective contamination exclusion for dusty, wet, or moderately contaminated environments
✅ AISI 52100 / GCr15 Chrome Steel Insert — Industry-standard bearing steel for maximum fatigue life and consistent hardness
✅ Standard Grease Fitting — Enables in-service re-lubrication for extended maintenance intervals without disassembly
✅ Wide Interchange Compatibility — Compatible with SKF, Dodge, Browning, Link-Belt, NTN, AMI, Fafnir, Seal Master, PEER, HCP — 10+ brands confirmed
✅ 3,000m² Warehouse — Large Ready Stock — Fast delivery for urgent maintenance and production line requirements
Industry | Application |
Agriculture / Farm Machinery | Grain augers, seed drills, irrigation pumps, harvester shafts |
Conveyor Systems | Belt conveyor head/tail/snub pulley shaft support |
Fan & Blower Assemblies | HVAC fan shaft support, industrial ventilation blowers |
Pumps | Light-duty centrifugal pump shaft support |
Manufacturing Equipment | General machinery shaft support, packaging lines |
Construction Equipment | Light-duty shaft support in concrete mixers, compactors |
Automotive | Assembly line conveyor and fixture shaft support |
Sporting & Consumer Goods | Fitness equipment, amusement ride shaft support |
Feed Mill | Grain processing equipment shaft support |
Q1: What is the difference between UCP205-25MM and UCP205-16?
Both use the same UCP205 cast iron housing with identical external dimensions (h=36.5mm, a=140mm, e=105mm). The difference is bore size and insert: UCP205-25MM = 25mm metric bore, UCP205-16 = 1" (25.4mm) fractional inch bore. Although very close in size (only 0.4mm difference), they are NOT interchangeable — always verify exact shaft diameter.
Q2: Is UCP205-25MM compatible with SKF UCP 205?
✅ Yes. The SKF UCP 205 is a direct cross-reference for the UCP205-25MM, sharing the same 25mm bore, housing dimensions, and load ratings (SKF: Cor=7.8 kN, speed=5,850 RPM). NEXANS UCP205-25MM is a factory-direct, cost-effective alternative.
Q3: What is the Dodge equivalent for UCP205-25MM?
The Dodge equivalent is P2B-SC-25M (Part #125852) — a direct cross-reference with identical bore (25mm), housing dimensions, and load ratings.
Q4: Can the UC205-25MM insert be replaced separately?
✅ Yes. The UC205-25MM insert bearing can be replaced independently without replacing the cast iron housing, significantly reducing maintenance costs. NEXANS Bearing supplies both complete UCP205-25MM units and UC205-25MM insert bearings separately.
Q5: How does UCP205-25MM compare to UCP206-25MM in load capacity?
The UCP206 series (25mm metric: UCP206-25MM) carries a higher dynamic load rating (~19.5 kN) vs UCP205-25MM (~14.0–15.8 kN), but with a larger, heavier housing. Choose UCP205-25MM for lighter loads with space constraints; choose UCP206-25MM for heavier radial load applications.
Q6: Is OEM/private label available?
✅ Yes. NEXANS Bearing provides full OEM and private label services — custom branding, packaging, and documentation. Flexible MOQ for distributors and maintenance contractors.
Email: export@nksbearing.comWhatsApp: +86-15562839480Website: www.nksbearing.com
NEXANS Bearing — Factory-direct partner for pillow block bearings and industrial bearing solutions since 1997.
