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SDP/SI machines high-quality shafting, available off-the-shelf or made to your exact needs. SDP/SI specializes in.Swiss machining, milling, tapping and drilling in.aluminum, stainless steel, steel alloys, and titanium.

Custom precision shafting can be made to meet your specifications:
  • 1/32“ to 1-1/2“ diameters
  • Tolerance: +/-.0001”
  • Straightness: Up to .0003”/Inch
  • Length: Up to 12 feet

The following modifications can be applied to shafts available through our catalog or e-store:
  • Journal ends
  • Through holes
  • Threaded ends
  • Chamfered ends
  • Flats

If your need is assembly – we do that to. Custom mechanical assemblies can be fabricated using our precision shafting with gears, pulleys, couplings and bearings from inventory or modified for your application. Call and to learn more about the options available at SDP/SI.

A wide range of Shaft Accessories are offered by SDP/SI. Precision and commercial quality shaft/hub clamps are available in.many different styles and sizes for fastening gears, pulleys and dials to a shaft. Shaftloc® fasteners are easy to reposition, easy to assemble, applicable to small shaft diameters and are cost effective. Other shaft accessories offered are shaft reducers and extenders, telescoping miniature ball splines and bore reducers, inch to inch reduction and inch to metric reduction.







THE SHAFTLOC® FASTENING SYSTEM:




Shaftloc® & Accessories

Shaftloc® is a patented fastening system that makes use of a simple two piece construction to secure rotating components to a shaft.











COMMERCIAL BORE REDUCERS:




Commercial Bore Reducers

AVAILABLE IN:

Materials: Aluminium, Brass
Outer Diameter: 0.2500 in. (6mm) - 0.6250 in. (16mm)
Length: ⅜ in. (9mm) - .1 ¼ in. (35mm)
Tolerance: +.0005 in. (+.013mm) - .0010 in. (-.025mm)


Inch-to-inch and inch-to-metric bore adapters are offered in.aluminum and brass in.a wide variety of sizes. Bore adapters with thicker walls may have a slot extending into opposite wall for additional flexibility. O.D. and I.D. tolerances are maintained before slitting.








COMMERCIAL HEX HOLE SLEEVES:




Commercial Bore Reducers

AVAILABLE IN:

Materials: Steel
Outer Diameter: 13/16 in. - 1 in.
Length: ¾ in. - 3 ¼ in.


Inch-to-inch and inch-to-metric bore adapters are offered in.aluminum and brass in.a wide variety of sizes. Bore adapters with thicker walls may have a slot extending into opposite wall for additional flexibility. O.D. and I.D. tolerances are maintained before slitting.








COMMERCIAL HEX SLEEVES:




Commercial Bore Reducers

AVAILABLE IN:

Materials: Steel, Stainless Steel, Brass
Hex Size: .1875 in. - 1.500 in.









PRECISION LOCKING HUB BUSHINGS:




Commercial Bore Reducers

AVAILABLE IN:

Materials: Steel
Outer Diameter: .938 in.(23.8mm) - 1.875 in.(47.6mm)
Length: .650 in.(16.5mm) - .984 in.(34mm)


Locking hub bushings are designed to fit components with limited hub O.D. and eliminate the need for keys or splines.








PRECISION PIPE SHAFTS:




Commercial Bore Reducers

AVAILABLE IN:

Materials: Hardened Steel
Outer Diameter: 6 mm - 25 mm
Length: 100 mm - 1000 mm









COMMERCIAL POTENTIOMETER SHAFT LOCKS:




Commercial Pontentiometer Shaft Locks

AVAILABLE IN:

Materials: Brass
Thread: 1/4 in. - 32 in. , 3/8 in. - 32 in.









COMMERCIAL & PRECISION SET SCREW TYPE SHAFT COLLARS:




Commercial and Precision Shaft Collars

AVAILABLE IN:

Materials: Steel, Stainless Steel
Outer Diameter: 7/32 in.(6mm) - 2 1/4 in.(28mm)
Bore: .0779 in.(1.5mm) - 1.2498 in.(16mm)
Tolerance: +.0005 in.(.013mm) - .0000 in.(0mm)















PRECISION CLAMP TYPE SHAFT COLLARS:




Commercial and Precision Shaft Collars

AVAILABLE IN:

Materials: Stainless Steel
Outer Diameter: 15 mm - 50 mm
Bore Size: 3 mm - 25 mm
Length (±0.1): 8 mm - 15 mm











PRECISION FAIRLOC® SHAFT COLLARS:




Precision Fairloc® Shaft Collars

AVAILABLE IN:

Materials: Brass, Stainless Steel
Outer Diameter: .433 in.(11mm) - 1.496 in.(38mm)
Bore Size: .12 in.(3mm) - .75 in.(20mm)
Length: .276 in.(7mm) - .630 in.(16mm)


Precision Fairloc® Shaft Collars with integral bearing shim spacer provides more holding strength than set screw collars. Fairloc® Shaft Collars are offered in.brass, black oxide finish and stainless steel for 1/8 up to 3/4 size shafts.










PRECISION FASTLOCK SHAFT COLLARS:




Precision Fastlock Shaft Collars

AVAILABLE IN:

Materials: Stainless Steel
Outer Diameter: .73 in.(22mm) - 2.95 in.(60mm)
Length: .1.00 in.(45mm) - 1.87 in.(48mm)


No tools are required when using Fastlock Shaft Collars. Slide the stainless steel collar to the correct position onto the shaft. It is now locked in.place. To release, hold body of collar and pull release ring. This allows the collar to be easily removed.










PRECISION SHAFTS & DRILL RODS:




Precision Shafts & Drill Rods

AVAILABLE IN:

Materials: Stainless Steel, Steel, Aluminum
Outer Diameter: .1247 in.(2mm) - .6250 in.(50mm)
Length: 1 in.(25mm) - 36 in.(1000mm)











COMMERCIAL SHAFT REDUCERS & EXTENDERS:




Commercial Fairloc® Shaft Reducers and Extenders

AVAILABLE IN:

Materials: Stainless Steel
Outer Diameter: 0.437 in.(11mm) - 1.000 in.(26mm)
Length: 1 1/2 in.(40mm) - 2 in.(56mm)


Stainless steel precision shaft extensions, inch and metric sized Fairloc® shaft reducers and extenders and stainless steel shaft reducers and extenders are offered in.a wide variety of sizes. Other bore sizes not listed are available on special order.










PRECISION SHAFT SUPPORTS:




Precision Shaft Supports

AVAILABLE IN:

Materials: Cast Aluminum
Shaft Diameter: 10mm - 50mm
Length: 42mm - 126mm











COMMERCIAL SQUARE HOLE BUSHES & SLEEVES:




Commercial Square Hole Sleeves

AVAILABLE IN:

Materials: Steel, C.R.S. 1117
Inner Square: 0.128 in. - 1.260 in.
Length: ¾ in. - 5 in.











COMMERCIAL SQUARE STOCK:




Commercial Square Stock

AVAILABLE IN:

Materials: Steel, Stainless Steel, Brass
Square Dimension: 0.1875 in. - 1.0000 in.
Length: 3 ft











PRECISION TAPER BUSHINGS:




Precision Taper Bushings

AVAILABLE IN:

Materials: Stainless Steel
Outer Diameter: 8 mm - 28 mm
Length (± 0.1): 15 in. - 28 in.
Bore Size: 4mm - 20mm











PRECISION TELESCOPING MINIATURE BALL SPLINES:




Precision Telescoping Ball Splines

AVAILABLE IN:

Materials: Stainless Steel
Outer Diameter: 9/32 in. - 2 in.
Length: 1 1/16 in. - 4 ¼ in.


Stainless steel telescoping miniature ball splines are compact in.design and feature zero backlash, low inertia and accommodates 1/4 axial motion. These spines may be mated to the S57PY5-… and S57PY4-… series of universal joints to make telescoping universal joints.







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