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Jet BDB-929 9 x 29 Belt Drive Bench Top Lathe
- $1,782.00
- Brands JET
- Product Code: 321379J
- Availability: In Stock
JET BDB-929 9 x 29 Belt Drive Bench Top Lathe Product Overview The JET BDB-929 9 x 29 Belt Drive Bench Top Lathe is a compact metalworking lathe designed for precision turning, facing, threading, boring, and other general machining operations. Its 9-inch swing over the bed and 29-inch class between-centers capacity provide useful working space for repair work, fabrication, prototyping, and small..
Features of Jet BDB-929 Bench Top Belt Drive Lathe
JET BDB-929 9 x 29 Belt Drive Bench Top Lathe
Product Overview
The JET BDB-929 9 x 29 Belt Drive Bench Top Lathe is a compact metalworking lathe designed for precision turning, facing, threading, boring, and other general machining operations. Its 9-inch swing over the bed and 29-inch class between-centers capacity provide useful working space for repair work, fabrication, prototyping, and small-part production.
A 3/4 HP, 115V, single-phase motor powers the belt-drive system, while six spindle speeds from 130 to 2,000 RPM allow the operator to select an appropriate speed for different materials and machining operations. The machine also features a quick-change gearbox for both inch and metric threading.
Key Features
- 9-inch swing over bed for general-purpose metal turning.
- 27.5-inch distance between centers for longer workpieces.
- 3/4 HP, 115V, single-phase motor suitable for compatible shop power.
- Belt-drive headstock with six spindle speeds.
- 130–2,000 RPM spindle-speed range.
- Power longitudinal feed supports turning and threading operations.
- Quick-change gearbox accommodates a range of inch and metric threads.
- Induction-hardened and ground bedways are designed for durability and long-term accuracy.
- Precision tapered roller bearings support the spindle.
- Emergency stop and reversing controls provide added operating convenience.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | JET |
| Model | BDB-929 |
| Product Type | Belt-drive bench-top metal lathe |
| Swing Over Bed | 8-3/4 in. |
| Swing Over Cross Slide | 5 in. |
| Distance Between Centers | 27.5 in. |
| Spindle Bore | 3/4 in. |
| Spindle Mount | 1-1/2 x 8 TPI |
| Spindle Taper | MT-3 with sleeve |
| Number of Spindle Speeds | 6 |
| Spindle Speed Range | 130–2,000 RPM |
| Motor | 3/4 HP |
| Electrical | 115V, 1 Phase |
| Longitudinal & Cross Feed Rates | 60 |
| Longitudinal Feed Range | 0.0006–0.0368 IPR |
| Inch Threads | 27 |
| Inch Thread Range | 8–56 TPI |
| Metric Threads | 12 |
| Metric Thread Range | 0.5–3.5 mm |
| Maximum Tool Size | 1/2 in. |
| Compound Slide Travel | 1-7/8 in. |
| Cross Slide Travel | 4-1/4 in. |
| Carriage Travel | 26.5 in. |
| Tailstock Spindle Travel | 1-9/16 in. |
| Tailstock Spindle Taper | MT-2 |
| Follow Rest Capacity | 1-3/4 in. |
| Steady Rest Capacity | 1-3/4 in. |
| Bed Width | 4-1/2 in. |
| Overall Dimensions | 51 x 22 x 20 in. |
| Machine Weight | 287 lb. |
Specifications are based on published JET/BDB-929 listings and JET catalog data.
Belt-Drive Headstock
The BDB-929 uses a belt-drive headstock with six spindle speeds, providing a practical range from 130 to 2,000 RPM. This allows operators to select slower speeds for larger-diameter workpieces and higher speeds for smaller parts and finishing operations.
The spindle is supported by precision tapered roller bearings, helping provide rigidity and smooth rotation during machining.
Threading Capability
One of the machine's major advantages is its quick-change gearbox, which supports both inch and metric threading without requiring the operator to manually change the gearing for every thread configuration.
The published specifications provide:
- 27 inch-thread settings
- 8–56 TPI range
- 12 metric-thread settings
- 0.5–3.5 mm metric thread range
The power longitudinal feed also allows the lathe to perform threading and reverse-threading operations.
9-Inch Swing and 27.5-Inch Capacity
The BDB-929 provides an 8-3/4-inch swing over the bed and 5-inch swing over the cross slide, giving the machine useful clearance for general turning operations. Its 27.5-inch distance between centers accommodates relatively long workpieces for a bench-top lathe.
Typical applications include:
- Shaft turning
- Facing
- Boring
- Thread cutting
- Taper work
- Part repair
- Small-batch production
- Prototyping
Hardened and Ground Bedways
The lathe's induction-hardened and ground bedways are designed to withstand repeated machining operations while maintaining a precise carriage path.
The rigid bed structure also contributes to stability when turning metal, helping the operator maintain controlled tool engagement.
Tailstock and Tooling
The tailstock uses an MT-2 taper and provides 1-9/16 inches of spindle travel. The headstock uses an MT-3 taper with sleeve, providing compatibility with suitable tooling and accessories.
The machine accommodates tools up to 1/2 inch according to the published specifications.
Operator Convenience and Safety
The BDB-929 incorporates several features intended to make operation more convenient and controlled:
- Easily accessible emergency stop
- Reversing switch
- Safety on/off switch
- Full-length splash guard
- Backlash adjustments throughout the carriage
- Power longitudinal feed
- Quick-change threading gearbox
The emergency stop should be reserved for stopping the machine quickly in an unsafe or abnormal situation rather than used as a substitute for normal shutdown procedures.
Typical Applications
The JET BDB-929 is well suited to:
- Machine shops
- Maintenance departments
- Repair facilities
- Fabrication shops
- Technical schools
- Prototype development
- Hobby machining
- Small-part manufacturing
- General metalworking
Standard Equipment
Published BDB-929 listings identify a range of included accessories, including a 4-inch three-jaw universal chuck, 7-1/4-inch four-jaw independent chuck, faceplate, MT-2 and MT-3 centers, steady rest, follow rest, gears, chuck keys, and a toolbox with tools. Exact package contents can vary by stock number or sales configuration, so the supplied equipment should be confirmed before purchase.
Maintenance
For reliable operation, periodically inspect and maintain:
- Drive belt
- Spindle bearings
- Bedways
- Lead screw
- Feed mechanism
- Chuck and chuck jaws
- Tailstock
- Tool post
- Gearbox
- Lubrication points
Keep the bedways clean and properly lubricated according to JET's maintenance instructions. Remove metal chips from the machine after use and inspect tooling regularly for wear or damage.
Safety Considerations
A metalworking lathe contains rotating components capable of causing serious injury. Operators should receive appropriate training before using the machine.
Always wear suitable eye protection and keep loose clothing, jewelry, hair, and other objects away from rotating components. Do not wear gloves while operating near rotating workpieces where they could become caught.
Secure the workpiece properly in the chuck and remove the chuck key before starting the spindle. Ensure the tool is correctly secured and positioned before machining.
Disconnect the machine from power before performing maintenance, cleaning internal components, or making adjustments that require access to moving parts.
Why Choose the JET BDB-929?
The JET BDB-929 9 x 29 Belt Drive Bench Top Lathe offers a useful combination of compact size, 27.5-inch between-centers capacity, six spindle speeds, power longitudinal feed, and versatile inch/metric threading capability.
With its 3/4 HP, 115V motor, hardened and ground bedways, tapered-roller spindle bearings, and quick-change gearbox, the BDB-929 is a practical choice for repair work, prototyping, education, general machining, and small-scale metalworking where a full-size industrial lathe would be unnecessary.