THESE ARE NOT PRESCRIBED BY THUNDER LASER AND ARE SAID TO DIFFER SLIGHTLY FROM THE OEM SUPPLIED BEARINGS
https://www.vxb.com/SG15U-U-Groove-Sealed-Track-Ball-Bearing-5x17x8-p/sg15u.htm
SG15U U-Groove Sealed Ball Bearing
5mm x 17mm x 8mm
One Bearing
| d | D | C | W | dw | d2 | H | L |
| 5mm | 17mm | 8mm | 9.75mm | 6mm | 8.6mm | 1mm | 20.46mm |
SG15U U groove sealed ball bearing size 5mm x17mm x8mm. Each bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination. The bearing is pre-lubricated with grease.
- Item: SG15U U GROOVE Ball Bearing
- Type: Deep Groove Ball Bearing
- Size: 5mm x 17mm x 8mm
- Inner Diameter: 5mm
- Outer Diameter: 17mm
- Width: 8mm
- Material: Chrome Steel
- Closures: 2 Rubber Seals
- Quantity: One Bearing