Description
Boston Gear 713A-40J 700 Series Indexing Drive Head 40:1 Ratio 258 in-lb w/ Lovejoy
The Boston Gear 713A-40J is a worm-gear indexing drive head from the 700 Series product line, manufactured in Quincy, Massachusetts. It provides a 40:1 gear reduction with a rated output torque of 258 lb-in (21.5 ft-lb) at an input of 0.24 HP, rated at 1.0 service factor at 1750 RPM. This listing includes the drive head along with a Lovejoy shaft assembly, L-090-C95 coupling hubs, brass spider inserts, and pillow block bearing supports.
Specifications & What's Included
- Manufacturer: Boston Gear (Quincy, Massachusetts, USA)
- Catalog Number: 713A-40 J
- Series: 700 Series
- Gear Ratio: 40:1
- Output Torque: 258 lb-in (21.5 ft-lb)
- Input HP: 0.24 HP
- Service Factor: 1.0 SF @ 1750 RPM input
- Recommended Lubricant: Mobil SHC 634
- Included: Boston Gear 713A-40J drive head
- Included: Lovejoy shaft assembly with orange-painted coupling hubs
- Included: Lovejoy L-090-C95 brass spider inserts (multiple)
- Included: Pillow block bearing supports (pair)
Applications
Boston Gear 700 Series indexing drive heads are worm-gear reducers designed for intermittent rotary indexing motion in automated industrial machinery. They are commonly used in packaging equipment, assembly lines, conveyor indexing systems, turntable drives, and other applications where precise, repeatable angular positioning is needed at low input speeds. The worm gear design provides a compact, right-angle drive with inherent self-locking characteristics at rest, which is useful in indexing table and dial plate applications. Boston Gear has been a well-established name in industrial power transmission components since the early twentieth century, and the 700 Series drives are a standard catalog offering found throughout manufacturing and material handling facilities. Lovejoy jaw-type couplings like the L-090-C95 are widely used alongside these drives to connect the motor shaft to the drive input while accommodating minor misalignment and dampening shock loads.
This Boston Gear 713A-40J 700 Series Indexing Drive Head has been inspected and is in good used condition. It was pulled from a working environment where it was in active use. The drive head housing shows normal surface wear and grime consistent with industrial service. The Lovejoy coupling hubs show visible surface rust and wear on the jaw faces, as seen in the photos — buyers should assess the jaw condition relative to their application. The brass spider inserts appear intact. All components pictured are included: the Boston Gear 713A-40J drive head, the Lovejoy shaft assembly with L-090-C95 coupling hubs and spider inserts, and the pillow block bearing supports. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Boston Gear |
Model: |
713A-40J |
MPN: |
713A-40J |
Type: |
Indexing Drive Head |
Series: |
700 Series |
SKU: |
44102 |
Ratio: |
40:1 |
Output Torque: |
258 lb-in (21.5 ft-lb) |
Input HP: |
0.24 HP |
Service Factor: |
1.0 SF @ 1750 RPM |
Recommended Lubricant: |
Mobil SHC 634 |
Country/Region of Manufacture: |
United States |
Condition: |
Used – Pulled from Working Environment |
Seller Notes: |
Includes Lovejoy shaft assembly, L-090-C95 couplings, spider inserts, and pillow block bearings |
Coupling Brand Included: |
Lovejoy |
Coupling Model Included: |
L-090-C95 |
Application: |
Intermittent motion / rotary indexing in automated machinery |
Condition Notes: |
Boston Gear 713A-40J 700 Series Indexing Drive Head, pulled from working environment. Drive head in good used condition. Lovejoy coupling hubs show surface rust and jaw wear — see photos. All pictured components included. |
