# H-Series Parallel Shaft Helical Gearbox Engineering Brief

Revision: Public family brief rev 2026-07-26
Family code: RGB-H
Product page: /products/h-series-helical-gearbox
Owner: Robotized Gearbox engineering resource desk
Source register: Product-family profile register
Last reviewed: 2026-07-26

## Public File Status

Product-family brief and RFQ worksheet are public.

This public brief supports early RFQ screening and buyer-side engineering review. It is not a final model-specific datasheet, certified 2D drawing, STEP, IGES, or SolidWorks release.

## Best-Fit Use

Conveyors, mixers, process equipment, and industrial drive upgrades.

## Subseries and Public Specification Matrix

### H parallel shaft helical gearbox

Scope: Heavy parallel-shaft helical reducers for conveyors, mixers, crushers, and large process equipment.

Public specs to check:
- torque 3,300-1,400,000 Nm
- ratio 1.25-450
- parallel shaft arrangement

Buyer use: Use this family when the drive train needs a Flender or SEW-style horizontal parallel-shaft replacement.

### Heavy conveyor and hoist package

Scope: Drive packages with backstop, brake, fan, cooler, and shaft accessory review.

Public specs to check:
- backstop or brake option
- thermal power check
- service factor review

Buyer use: Use this family when accessories and duty cycle determine whether a replacement is reliable.

### Custom shaft arrangement

Scope: Solid shaft, hollow shaft, shrink-disc, and foot/flange mounting adaptations for legacy equipment.

Public specs to check:
- shaft height match
- mounting foot pattern
- solid or hollow output

Buyer use: Use this family when the gearbox must match an existing foundation and connected machine shaft.

## Minimum Inputs Before Matched Files

- Power, torque, and speed
- Ratio and service factor
- Input and output shaft arrangement
- Mounting position

## CAD and Datasheet Release Gate

Released after shaft and ratio configuration review.

Engineering confirms shaft arrangement, mounting position, service factor, and accessory needs before sending files.

## Matched Package After Review

- Configured gearbox envelope
- Shaft arrangement drawing
- Mounting position notes
- Export packing checklist

## Public Downloads to Pair With This Brief

- public family brief
- RFQ template
- asset index
- export packing checklist

## Recommended Worksheet Links

- Gearbox RFQ Template: /resources/gearbox-rfq-template.csv
- Engineering Asset Index: /resources/gearbox-engineering-asset-index.csv
- CAD Package Manifest: /resources/gearbox-cad-package-manifest.csv
- Replacement Review Checklist: /resources/replacement-review-checklist.csv
- Inspection Document Request: /resources/inspection-document-request.csv

## Buyer Review Notes

- Use this brief to decide whether the product family is plausible before sending confidential drawings.
- Attach torque, ratio, backlash, duty cycle, mounting, quantity, destination, and incumbent evidence when available.
- Ask engineering to confirm the configured model, interface, revision, and inspection-document scope before using any matched CAD file in a machine layout.