Overview
The RAK UC205-25MM pillow block bearing is a mounted bearing unit featuring a UC205 chrome steel bearing insert housed in a durable P205 cast iron pillow block housing. With a 25mm bore diameter and 2-bolt base design, this bearing assembly provides reliable shaft support for industrial applications including conveyors, presses, linear drives, and machinery frame installations. The set screw locking mechanism prevents shaft slippage during operation.
Key Features
- Cast iron P205 housing — one-piece design for durability and extended bearing life
- UC205 chrome steel bearing insert — GCR15 material rated for efficient operation across wide speed ranges
- 25mm bore diameter — fits standard cylindrical shafts
- 2-bolt mounting base — 105mm bolt center-to-center spacing with 13mm bolt holes
- Set screw locking mechanism — prevents shaft rotation and slippage
- Contact seal with flinger — protects bearing from contamination
Technical Specifications
The following specifications define the RAK UC205-25MM pillow block bearing unit:
- Bore Diameter: 25mm (0.984 inches)
- Bearing Insert: UC205 (Chrome Steel GCR15)
- Dynamic Load Rating: 14 kN
- Static Load Rating: 7.85 kN
- Housing Material: Cast Iron (P205)
- Mounting Style: 2-Bolt Pillow Block Base
- Bolt Center Distance: 105mm
- Overall Length: 140mm
- Base-to-Bore Centerline Height: 36.5mm
- Overall Height: 70mm
- Base Width: 38mm
- Bolt Hole Diameter: 13mm (M10 bolts)
- Locking Type: Set Screw
- Seal Type: Contact Seal with Flinger
- Weight: 0.8 kg
Typical Applications
The UC205-25MM pillow block bearing is ideal for:
- Conveyor systems — shaft support in material handling equipment
- Industrial presses and stamping equipment — general machinery frames
- Linear drive systems — rotational shaft support in motion control
- Workshop and production machinery — general-purpose shaft alignment and support
- General industrial machinery — any application requiring 25mm bore mounted bearing support
Compatibility & Replacements
Compatible With
- Standard 25mm diameter shafts (cylindrical)
- M10 metric fasteners (3/8″ UNC equivalent)
- Industrial machinery frames with 2-bolt pillow block mounting points
- Lubrication systems compatible with standard bearing fittings
Replaces / Drop-In Replacement For
The RAK UC205-25MM directly replaces any standard UC205-25MM pillow block bearing unit, including equivalent models from other manufacturers using the same UC205 insert and P205 housing nomenclature.
Works With
- Standard 25mm shaft designs
- Industrial conveyor and machinery frame assemblies
- Set screw locking mechanisms for shaft securing
- Cast iron pillow block mounting systems per ISO and North American bearing standards



