Vortex Torque Arm Kits

Vortex torque arm kits for VXT-Series shaft mount reducers and VMRV-Series IEC metric worm gear reducers. When a shaft-mount or hollow-bore reducer is mounted directly on the driven shaft, the reducer housing wants to rotate with the input torque. A torque arm bolts the housing to a stationary frame, taking the reaction torque and keeping the reducer fixed in orientation. Texas Belting and Supply stocks 9 VXT torque arm kits (sizes 2TA through 10TA) and 7 VMRV torque arm kits (sizes 30 mm through 110 mm), all size-matched to their respective reducer families.

Applications

Typical applications for Vortex torque arm kits:

• Required on every VXT shaft mount drive (the reducer is hung on the driven shaft and cannot rotate freely)
• Required on every VMRV worm gear drive where the unit is hollow-bore mounted on the driven shaft
• Replacement of a worn or damaged torque arm on an existing shaft-mount drive installation
• Conversion of a base-mounted drive to a shaft-mount drive (requires adding a torque arm)
• Service and repair work where the original torque arm is missing or non-original

Frequently Asked Questions

Match the torque arm to your reducer size:

For VXT reducers, use the matching TA size (2TA for VXT2, 5TA for VXT5, 10TA for VXT10, etc.). For VMRV reducers, use the matching TA accessory for that VMRV size (VMRV-50 TA for a VMRV-50, etc.).

What does the torque arm kit include?

A complete torque arm assembly: the rigid arm itself, the housing pivot mount, the frame attachment bracket, and the bolts and washers needed to install. The frame end of the arm is typically pinned to a stationary structure (machine frame, building column, support stand).

Where do I anchor the frame end?

Anywhere on a rigid stationary structure within the swing of the arm's pivot point. The arm should hang approximately perpendicular to the driven shaft for maximum mechanical leverage and minimum side load on the bushing.

What reducer family is each torque arm kit for?

Each accessory in this collection is labeled with the reducer family it fits (X-Series, VXT-Series, VR-Series, or VMRV-Series). Filter by reducer family or browse by accessory type. Each product page also indicates the specific reducer size and configuration the accessory matches.

Does Texas Belting and Supply ship from Houston?

Yes. All Vortex torque arm kits in our active inventory ship from Texas Belting and Supply's Houston, TX warehouse the same business day for orders placed before 3 PM Central time, subject to current inventory. Non-stocked configurations may have a 1-3 business day lead time. Call (888) 203-2358 to confirm current stock for any specific part.

How do I know which size accessory I need?

Match the accessory to your existing reducer. The accessory part number prefix tells you the family (VXT vs X-Series vs VMRV vs VR). The number in the SKU tells you the unit size (2-12 for VXT, 30-110 for VMRV, 133-325 for X-Series). If you cannot identify your reducer's exact specification, call (888) 203-2358 with the existing reducer's nameplate information and we will help you spec the right accessory.