NTN UCP207D1 Two-Bolt Pillow Block Mounted Bearing
The NTN UCP207D1 is a premium one-piece cast iron pillow block bearing unit from NTN Corporation, a global leader in bearing technology. This integrated assembly combines a UC207D1 wide inner ring ball bearing insert with set screw locking housed in a robust P207D1 cast iron pillow block housing. Engineered for versatile industrial applications, this two-bolt base mounted unit provides secure and reliable shaft support with exceptional ease of installation and maintenance.
The NTN UCP207D1 is a premium one-piece cast iron pillow block bearing unit from NTN Corporation, a global leader in bearing technology. This integrated assembly combines a UC207D1 wide inner ring ball bearing insert with set screw locking housed in a robust P207D1 cast iron pillow block housing. Engineered for versatile industrial applications, this two-bolt base mounted unit provides secure and reliable shaft support with exceptional ease of installation and maintenance. The D1 designation indicates standard construction for light duty applications, featuring NTN's advanced contact sealing system for optimal performance in diverse operating environments.
Core Features
- Set Screw Locking Mechanism: Two set screws positioned 120° apart ensure secure attachment to 35mm diameter shafts without additional locking devices, simplifying installation while preventing fretting wear on shaft surfaces
- Self-Aligning Performance: Spherical outer ring of the bearing insert accommodates up to 2° of initial shaft misalignment, reducing stress concentrations and extending bearing service life
- Nitrile Rubber Contact Seals: Double-lip contact seals effectively retain lubricant while preventing contamination from dust, dirt, and moisture ingress, ensuring reliable operation in harsh environments
- Single-Piece Cast Iron Housing: Provides exceptional structural rigidity, vibration damping, and durability for demanding industrial applications
- Relubricatable Design: Features a grease fitting for easy maintenance and extended operational life by allowing fresh lubricant to be added without disassembly
- Wide Temperature Range: Operates reliably from -40°C to 120°C (-40°F to 250°F), suitable for diverse industrial operating conditions
- Light Duty Performance: Optimized for applications with moderate loads and speeds, providing an excellent balance of performance and cost-effectiveness
- Pre-Lubricated: Factory-filled with high-quality NTN Lithium-Bearing Grease for immediate installation and reliable initial operation
Technical Specifications
| Parameter | Metric Value | Imperial Value |
|---|---|---|
| Bearing Unit Number | UCP207D1 | UCP207D1 |
| Bearing Insert Number | UC207D1 | UC207D1 |
| Housing Number | P207D1 | P207D1 |
| Shaft Diameter (d) | 35.000 mm | 1.3780 in |
| Locking Device | Set Screw (two, positioned 120° apart) | Set Screw (two, positioned 120° apart) |
| Housing Type | Two-Bolt Pillow Block | Two-Bolt Pillow Block |
| Total Length (L) | 167.0 mm | 6.5625 in |
| Mounting Hole Center-to-Center (J) | 127.0 mm | 5.0000 in |
| Base to Bore Center Height (H) | 47.6 mm | 1.8750 in |
| Housing Base Thickness (H1) | 18.0 mm | 0.7187 in |
| Overall Height (H2) | 93.0 mm | 3.6562 in |
| Base Width (A) | 48.0 mm | 1.8750 in |
| Mounting Bolt Diameter (N) | 17.0 mm | 0.6562 in |
| Mounting Hole Diameter (N1) | 20.0 mm | 0.7812 in |
| Inner Ring Width (B) | 42.900 mm | 1.6890 in |
| Bearing Insert Width (S) | 17.500 mm | 0.6890 in |
| Fillet Radius (F) | 4.600 mm | 0.1811 in |
| Dynamic Load Rating (Cr) | 25,700 N (25.70 kN) | 5,800 lbf |
| Static Load Rating (Cor) | 15,300 N (15.30 kN) | 3,450 lbf |
| Maximum Rotational Speed | 4,200 RPM | 4,200 RPM |
| Operating Temperature Range | -40 to 120 ºC | -40 to 250 ºF |
| Weight | 1.625 kg | 3.580 lb |
| Seal Type/Material | Double Lip Contact / Nitrile Rubber (NBR) | Double Lip Contact / Nitrile Rubber (NBR) |
| Housing Material/Construction | Cast Iron / One-Piece | Cast Iron / One-Piece |
| Performance Classification | Light Duty (2 Series) | Light Duty (2 Series) |
| Lubrication | Pre-filled with NTN Lithium-Bearing Grease / Relubricatable | Pre-filled with NTN Lithium-Bearing Grease / Relubricatable |
| End Type | Open | Open |
Applications
The NTN UCP207D1 two-bolt pillow block bearing is ideally suited for a wide range of industrial applications including:
- Material handling equipment (conveyor systems, belt drives, and roller assemblies)
- Agricultural machinery (augers, mixers, and harvesting equipment)
- HVAC systems (industrial fans, blowers, and air handling units)
- Industrial pumps, compressors, and small generators
- Packaging and printing machinery requiring reliable shaft support
- Food processing equipment (where standard lubrication is acceptable)
- General purpose rotating machinery requiring cost-effective, low-maintenance two-bolt base mounting
This bearing unit delivers a reliable, low-maintenance solution for your shaft support needs, backed by NTN's global reputation for precision engineering, quality, and innovation in bearing technology.
