Products

Over 87,000 Standard Mechanical Components

Precision and Commercial
Inch and Metric
Small Quantities to Large Production Runs

Custom design and Assemblies – Our engineers are always available for free technical support and design consultation.

Request your FREE Inch and Metric catalogs, more than 2,784 pages of parts, specifications and technical data

Established in 1950, SDP/SI is the leading manufacturer and supplier of high-quality machined parts, molded components, precision gears and gear assemblies. Industries from all sectors rely on SDP/SI for small mechanical components and subassemblies. SDP/SI precision parts are used worldwide in robotics for medical instrumentation to surveillance systems; antenna positioning in satellites; door releases and stabilization systems in commercial and military jets; actuation/positioning systems and weapons targeting for tanks and missiles. Get the high-quality service and mechanical components your design requires at SDP/SI.

DRIVE COMPONENTS

Industrial Timing Belts:

Standard Widths
Custom Widths

Cables Accessories:
Timing Belt Clamps
Timing Belt Tension Meters
Timing Belt Tensioners

Pulleys:

Offered in both metal and plastic to match belt profiles
Wide variety of miniature pulleys and matching timing belts.

Can be customized to your specifications
SDP/SI Engineers are power transmission design specialists

Ladder Chain and Roller Chain:

For Light Duty to Heavy Duty Applications
Metal and Self-Lubricating Plastic

Sprockets:

Offered in metal and plastic
Subminiature, miniature and small sizes

GEAR DRIVES

Precision and Commercial Gears:

Spur Gears
Anti-Backlash Gears
Mini-Lash Gears
Pinions
Gear Racks
Round Gear Racks
Internal Gears
Miter and Bevel Gears
Anti-Backlash Worm Gears
Worm Gears and Worms
Gear Clamps
Differentials
Custom Design and Assemblies

GEARHEADS & SPEED REDUCERS

Bu-Ord Sizes 8 – 18
Planetary Gearheads
Spur Gearheads
Custom design and manufactured to your specs

RIGHT-ANGLE GEAR DRIVES & SPEED REDUCERS

Bevel Gearboxes
Worm and Bevel Gear Drives
Worm Gear Speed Reducers
Helical Gear Speed Reducers
Miniature Gear Drives
Standard Components and Build-to-Print Custom Parts and Assemblies

SHAFT COUPLINGS

Rigid Shaft Couplings:

Flexible Shaft Couplings:

Heavy-Duty Flexible Couplings
Miniature Bellows Type Flexible Couplings
Modular Bellows Type Flexible Couplings (build to meet your specific need)
Powerful Magnetic Disk Couplings

UNIVERSAL JOINTS

VIBRATION AND SHOCK ABSORBING COMPONENTS

VIBRATION & SHOCK ABSORBING COMPONENTS

Miniature, lightweight shock absorbing components for instrumentation, camera mounts and other high-tech applications
Heavy-duty machine mounts for industrial applications
Vibration reduction mounts for HVAC

CLUTCHES AND BRAKES

A wide assortment of clutches and brakes are offered to meet demand.
In-Line Slip Clutches providing adjustable torque
Spring-Wrapped Slip Clutches for long life and unidirectional or bidirectional operations
Magnetic Clutches operate in some of the most difficult environments