Stafford Manufacturing Corp. | The Super Source for Collars & Couplings
Stafford Manufacturing Corp.
256 Andover St.
Wilmington, MA 01887

Phone: 978.657.8000 or 800.695.5551
Fax: 978.657.4731 or 800.649.5101
Email: sales@staffordmfg.com
Website: www.staffordmfg.com
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  • Smooth bore protects shafts from damage
  • Superior holding power over set-screw type collars
  • Offered in High Strength, Low Profile and Heavy Duty styles
  • Stocked in a variety of materials
    •
1-Piece Clamp-Type Shaft Collars are for use on standard round shafts, hard or soft, as well as on thin wall tube or over a split hub. Precision machined, non-marring, easy to adjust, with high clamping power, they are stocked in the following materials:
  • Steel
  • Stainless Steel
  • Aluminum
  • Nylon
  • Delrin
Offered in three styles:
  • High Strength: Clamp screw does not protrude beyond the outside diameter (OD)
  • Low Profile: Clamp screw protrudes beyond the OD
  • Heavy Duty: Uses larger clamp screw and has larger OD for 2X holding power
Standard Series offers economy-priced versions of low-profile styles (31LXXX and 31SXXX parts).
Unit of Measure

Specifications

Part Number  

 1S304

Series

 Signature

Material

 Stainless Steel (303)

Alloy

 303

Finish

 None

Type

 High Strength

Approximate Weight

 1.89 lb

Country of Origin

 USA

UPC Code

 662786001277

RoHS2 Compliant

 Yes

REACH Compliant

 Yes

Manufacturer Stock

Message

Dimensional Attributes

Bore Size

 3-1/4 in

Outside Diameter

 4.750 in

Width

 0.750 in

Recessed Screw

 Yes

Screw Size

 3/8-24 x 1

Screw Material

 18-8 Stainless Steel