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Product Description
The UCP206-30MM is a two-bolt pillow block bearing unit from the UCP200 series, combining a cast iron pillow block housing with a UC206-30MM chrome steel insert bearing. Designed for standard-duty industrial applications, the UCP206-30MM accepts a 30mm 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
UC206-30MM 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
Unit weight: 2.87 lb (1.30 kg)
Parameter | Inch | Metric | Source |
Model | UCP206-30MM | UCP206-30MM | |
Insert Bearing | UC206-30MM | UC206-30MM | |
Bearing Type | Pillow Block Ball Bearing Unit | Pillow Block Ball Bearing Unit | |
Shaft Diameter (d) | — | 30 mm | |
Base to Center Height (h) | 1-11/16" | 42.9 mm | |
Overall Length (a) | 6-1/2" | 165 mm | |
Bolt Spacing (e) | 4-3/4" | 120.7 mm | |
Centre Distance Between Bolt Holes | — | 121 mm | |
Housing Width (b) | 1-7/8" | 47.6 mm | |
Base Width (A) | 1-7/8" | 48 mm | |
Housing Overall Width | — | 45 mm | |
S2 | 25/32" | 20 mm | |
S1 | 21/32" | 16.7 mm | |
g | 21/32" | 16.7 mm | |
w (Insert Width) | 3-5/16" | 84.1 mm | |
Bi | 1.5000" | 38.1 mm | |
n | 0.6260" | 15.9 mm | |
M | — | 22.2 mm | |
Bolt Size | 1/2" | M14 | |
Dynamic Load (Cr) | — | 19.5 kN | |
Static Load (Cor) | — | 11.3 kN | |
Unit Weight | 2.87 lb | ~1.30 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 Duty | Standard Duty | |
Series | UCP200 | UCP200 |
Brand | Part Number | Notes |
NEXANS / NKS | UCP206-30MM | ✅ AISI 52100 / GCr15 Chrome Steel |
SKF | UCP 206 | ✅ Direct equivalent (30mm) |
FYH | UCP206-30MM | ✅ Direct equivalent |
AMI / ASAHI | UCP206-30MM | ✅ Direct equivalent |
USARollerChain | UCP206 (30mm) | ✅ Direct equivalent |
Insert only | UC206-30MM | ✅ Insert bearing component |
Note: UCP206-30MM is a metric bore (30mm) variant. Inch-bore UCP206 variants (UCP206-17 through UCP206-20) use the same housing but with different bore sizes. Always confirm shaft diameter before ordering.
Parameter | UCP206-30MM | UCP207-35MM | Source |
Bore | 30 mm | 35 mm | |
Center Height | 42.9 mm | 47.6 mm | |
Overall Length | 165 mm | 167 mm | |
Bolt Spacing | 120.7 mm | 127 mm | |
Bi | 38.1 mm | 42.9 mm | |
Dynamic Load (Cr) | 19.5 kN | 25.5–25.7 kN | |
Static Load (Cor) | 11.3 kN | 15.3–15.6 kN | |
Housing | Cast Iron | Cast Iron |
✅ Cr=19.5kN / Cor=11.3kN — Multi-Source Confirmed — Load ratings independently verified by USARollerChain and QualityBearingsOnline, consistent across all sources
✅ 30mm Metric Bore — Direct fit for standard metric shafts; no adapter sleeve required, simplifying installation and reducing assembly time
✅ 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 including agriculture, conveyor, and HVAC
✅ AISI 52100 / GCr15 Chrome Steel Insert — Industry-standard bearing steel for maximum fatigue life and consistent hardness
✅ Lightweight at 2.87 lb — Compact UCP206 series; lighter and more compact than UCP207, ideal for space-constrained installations
✅ Standard Grease Fitting — Enables in-service re-lubrication for extended maintenance intervals without disassembly
✅ 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 UCP206-30MM and UCP207-35MM?
UCP206-30MM = 30mm bore, smaller series with Cr=19.5kN, center height 42.9mm, overall length 165mm; UCP207-35MM = 35mm bore, larger series with Cr=25.5–25.7kN, center height 47.6mm, overall length 167mm. Choose UCP206-30MM for 30mm metric shafts and lighter load applications; choose UCP207-35MM for 35mm shafts and heavier loads.
Q2: Can the UC206-30MM insert be replaced separately?
✅ Yes. The UC206-30MM insert bearing can be replaced independently without replacing the cast iron housing, significantly reducing maintenance costs. NEXANS Bearing supplies both complete UCP206-30MM units and UC206-30MM insert bearings separately.
Q3: What lubrication is recommended?
Standard lithium-based NLGI #2 grease via the standard grease fitting. Re-grease interval depends on speed, load, and environment — typically every 3–6 months for standard industrial applications.
Q4: Is the UCP206-30MM bolt size M12 or M14?
Per NEXANS official dimensions, the bolt size is listed as M14 / 1/2". Note that some sources (e.g., USARollerChain) list M12 for the standard UCP206 series — always verify with the housing drawing for your specific application.
Q5: 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.com WhatsApp: +86-15562839480 Website: www.nksbearing.com
NEXANS Bearing — Factory-direct partner for pillow block bearings and industrial bearing solutions since 1997.
