SRN
Needle Roller Bearing system
High-tension steel
Fully Sealed Mechanism
Ball retainer on upper unit for weight saving
Technical Information
| Material | Height | Information | ||
| Top Cover | A6061-T6 | Light Alloy | 4.6mm | ID 28.8mm |
| Compression ring | Nylon | Plastic | 6.5mm | ID 28.6mm |
| Top Cone | SS41 | Steel | 5.3mm | ID 30.0mm |
| Upper Stationary Cup | A6061-T6 | Light Alloy | 19.8mm | Insertion 34.0 +0.1 -0/ 10mm depth |
| Lower Stationary Cup | A6061-T6 | Light Alloy | 21.5mm | Insertion 34.0 +0.1 -0/ 9.5mm depth |
| Needle Roller Race | SPCC | Steel | Steel | |
| Crown Cone | SS41 | Steel | 6.2mm | Insertion 30.0 +0 -0.1 |
| Lower Seal Ring | Nylon | Plastic | 1.0mm | |
| Ball Retainer | Chorome Balls | Steel | #800 | 5/32"x 22 Balls |
| Needle Roller Bearing | SCM415 |