U-Shaped 608 Bearing Roller Guide Wheel 8×30×13mm Pulley
U-Shaped 608 Bearing Roller Guide Wheel 8×30×13mm Pulley
U-Shaped Nylon Roller Guide Wheel with 608 Bearing – 8×30×13mm
Keep your sliding, rolling, or track-guided mechanisms running smoothly with this precision-engineered U-shaped bearing roller guide wheel. Featuring a nylon outer shell paired with a high-quality carbon steel 608 (6200-type) inner bearing, this roller pulley delivers quiet, low-vibration operation for a wide range of DIY, workshop, and mechanical applications.
Made in Mainland China.
Key Features
- U-Groove Profile: Designed to track along rails, rods, or edges — ideal for sliding doors, drawer guides, 3D printer frames, CNC machines, and more.
- Nylon Construction: Lightweight, durable nylon body reduces noise and absorbs vibration for smooth, quiet rolling motion.
- Carbon Steel Bearing Core: High-quality carbon steel 608-type bearing provides strong load capacity and long service life.
- Precise Dimensions: Inner diameter 8mm | Outer diameter 30mm | Thickness 13mm — fits standard 8mm shafts and axles.
- 100% Brand New: Individually packaged and quality-inspected before shipping.
Specifications
| Material | Nylon (shell), Carbon Steel (bearing) |
| Bearing Type | 608 / 6200 |
| Inner Diameter | 8 mm |
| Outer Diameter | 30 mm |
| Thickness | 13 mm |
| Package Includes | 1 × U-Shaped Roller Guide Wheel |
| Country of Origin | Mainland China |
Common Applications
- 3D printers and CNC router frames
- Sliding door and cabinet rail systems
- Linear motion guides and drawer slides
- DIY workshop jigs and fixtures
- Conveyor and pulley systems
Please Note: Colors may vary slightly due to monitor settings. Minor dimensional tolerances (±0.5mm) are normal due to manual measurement.
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Frequently Asked Questions
Q: What shaft size is compatible with this U-shaped roller guide wheel?
A: This roller guide wheel has an inner diameter of 8mm, making it compatible with standard 8mm shafts, bolts, or axles commonly used in 3D printers, CNC machines, and linear rail systems.
Q: Is the nylon body strong enough for heavy-duty use?
A: The nylon shell is engineered for durability and low-noise rolling in light-to-medium duty applications. The high-quality carbon steel 608-type bearing core adds structural strength. For heavy industrial loads, we recommend verifying load requirements against the 8×30×13mm specifications.
Q: Can I use this roller in a 3D printer or CNC frame?
A: Yes — this U-groove roller guide wheel is a popular choice for V-slot and similar extrusion-based 3D printer and CNC frames where an 8mm bore roller with a 30mm outer diameter is required.