NTN UCF210D1 Four-Bolt Square Flanged Mounted Bearing
The NTN UCF210D1 (also designated as UCF210-200D1) is a high-performance four-bolt square flanged mounted bearing unit from NTN's comprehensive range of mounted ball bearing solutions. This integrated assembly combines a UC210-200D1 wide inner ring ball bearing insert with set screw locking housed in a robust F210D1 cast iron four-bolt square flange housing.
The NTN UCF210D1 (also designated as UCF210-200D1) is a high-performance four-bolt square flanged mounted bearing unit from NTN's comprehensive range of mounted ball bearing solutions. This integrated assembly combines a UC210-200D1 wide inner ring ball bearing insert with set screw locking housed in a robust F210D1 cast iron four-bolt square flange housing. Engineered for quick installation and reliable operation, this unit provides secure shaft support for industrial applications requiring a stable, space-efficient mounting solution with four-point bolt fixation.
Core Features
- Set Screw Locking Mechanism: Two set screws positioned 120° apart ensure secure attachment to shafts without additional locking devices, simplifying installation and maintenance
- 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
- Dual Protection System: Nitrile rubber contact seals with steel slingers effectively retain lubricant while preventing contamination from dust, dirt, and moisture ingress
- Single-Piece Cast Iron Housing: F210D1 housing provides exceptional structural rigidity, vibration damping, and durability for demanding industrial environments
- 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
Technical Specifications (from NTN official website)
| Parameter | Metric Value | Imperial Value |
|---|---|---|
| Bearing Unit Number | UCF210-200D1 (UCF210D1) | UCF210-200D1 (UCF210D1) |
| Bearing Insert Number | UC210-200D1 | UC210-200D1 |
| Housing Number | F210D1 | F210D1 |
| Shaft Diameter (d) | 50.800 mm | 2.0000 in |
| Locking Device | Set Screw | Set Screw |
| Housing Type | Four-Bolt Square Flange | Four-Bolt Square Flange |
| Total Length (L) | 143.0 mm | 5.6250 in |
| Bolt Hole Spacing (J) | 111.0 mm | 4.3750 in |
| Housing Height (A) | 40.0 mm | 1.5625 in |
| Overall Height (A0) | 54.600 mm | 2.1562 in |
| Flange Thickness (A1) | 16.0 mm | 0.6250 in |
| Distance from Mounting Surface to Raceway (A2) | 22.0 mm | 0.8594 in |
| Bolt Hole Size (N) | 16.0 mm | 0.6250 in |
| Inner Ring Width (B) | 51.600 mm | 2.0315 in |
| Center of Bearing from Housing End (S) | 19.000 mm | 0.7480 in |
| Seal Lip Protrusion (F) | 5.900 mm | 0.2323 in |
| Dynamic Load Rating | 35000 N (35.00 kN) | 7868 lbf |
| Static Load Rating | 23200 N (23.20 kN) | 5216 lbf |
| Maximum Rotational Speed | 3100 RPM | 3100 RPM |
| Operating Temperature Range | -40 to 120 ºC | -40 to 250 ºF |
| Weight | 2.500 kg | 5.504 lb |
| Seal Type/Material | Contact / Nitrile Rubber | Contact / Nitrile Rubber |
| Housing Material/Construction | Cast Iron / One-Piece | Cast Iron / One-Piece |
| Performance Classification | Light Duty | Light Duty |
| Lubrication | Relubricatable | Relubricatable |
Applications
The NTN UCF210D1 four-bolt square flanged mounted bearing is ideally suited for a wide range of industrial applications including:
- Agricultural machinery (conveyors, augers, balers, and harvesters)
- Material handling equipment (belt conveyors, chain conveyors, and lifting systems)
- HVAC systems (industrial fans, blowers, and air handling units)
- Industrial pumps, compressors, and generators
- Packaging and printing machinery
- Food processing equipment
- General purpose rotating machinery requiring secure, stable shaft support with four-bolt mounting
This bearing unit delivers a cost-effective, low-maintenance solution for your shaft support needs, backed by NTN's global reputation for precision engineering, quality, and innovation in bearing technology.
