This Gates power transmission accessory is a component of the Gates Draftguard enclosed V-belt drive system. Draftguard assemblies protect the belt and sheaves from contamination in harsh environments — the spacer and locking ring must match the Draftguard model for correct assembly and safe operation. Where this product is used Gates power transmission accessories support the correct assembly and maintenance of Gates enclosed drive systems. Typical uses include: Gates Draftguard enclosed drive assemblies requiring correct spacer and locking-ring fitment Drive system installation and assembly where Gates-specified components ensure drive integrity Maintenance and rebuild of enclosed belt drive units in industrial and agricultural applications Key specifications Series Draftguard Selecting the right option Draftguard spacers and locking rings are specific to Gates enclosed drive assemblies — confirm the Draftguard model number (3525/4030 for the spacer) before ordering. These are not interchangeable across Draftguard sizes. Contact AIMS if you need assistance identifying the correct accessory for your Gates enclosed drive.