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OVER 100,000 STANDARD
MECHANICAL COMPONENTS

Established in 1950, SDP/SI is the leading manufacturer
and supplier of high-quality machined parts, molded components, precision gears and gear assemblies.

We offer 3D CAD models of our products
Here's how to find them!















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















Timing Belt and Pulley Drives
Can be customized to your specifications
SDP/SI Engineers are power transmission design specialists




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.

Ladder Chain and Roller Chain:
For Light Duty to Heavy Duty Applications
Metal and Self-Lubricating Plastic

Sprockets:
Offered in metal and plastic
Sub-miniature, miniature and small sizes









Gears, Custom and Standard

Gears & Drives







  
Precision and Commercial Gears:
Standard & Custom
Spur Gears
Anti-Backlash Gears
Mini-Lash Gears
Helical Gears
Pinions
Gear Racks
Round Gear Racks
Internal Gears
Miter and Bevel Gears
Anti-Backlash Worm Gears
Worm Gears and Worms
Gear Clamps
Differentials
Planetary Gears
Speed Reducers/Increasers
Gearboxes
Custom Design
Precision Gear Cutting
Assembly









Motors, Gearheads, and Motion Control
MOTORS, GEARHEADS,
& MOTION CONTROL













DC Motors
DC Geared Motors
AGV Kits & AGV Geared Motors
Controllers
Integrated Motor Controllers
Gearheads
AC Motors
Sensors, Cables, & Misc. Components
Small Gearmotors









Right Angle Gear Drives and Speed Reducers

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
SHAFT COUPLINGS






Rigid & Flexible Shaft Couplings:
Heavy-Duty Flexible Couplings
Miniature Bellows Type Flexible Couplings
Modular Bellows Type Flexible Couplings
(built to meet your specific need)
Powerful Magnetic Disk Couplings








Universal Joints

Universal Joints



















Vibration and Shock Mounts
VIBRATION &
SHOCK MOUNTS






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









GEAR DRIVES

CLUTCHES & 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







TIMING BELT & PULLEY DRIVES


Bearings 







Precision & Commercial Bearings:
Ball Bearings
Flange Mounted Bearings
Housing-Bearing & Pillow Block
Linear Bearings
Needle Roller Bearings
Pillow Block Bearings
Press-Fit Bearings
Rod End Bearings
Sintered Bronze Bars
Sleeve Bearings
Spherical Bearings
Thrust Bearings & Components





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