SPK-28-A

$58.47 ea
Quantity Price (USD)
1 $58.47 ea
20 $35.08 ea
25 $29.24 ea
50 $26.31 ea
100 Request Quote
In Production Lead Time: 1 Week or Less
Ruland SPK-28-A, 1 3/4" Two-Piece Shaft Collar, Aluminum, Clamp Style With Keyway, 2 3/4" OD, 0.688" Width

PRODUCT SPECIFICATIONS

Ruland SPK-28-A is a two-piece shaft collar with a 1 3/4" bore, 2 3/4" OD, and 0.688" width. The clamp style design does not mar the shaft, is easy to remove, and is indefinitely adjustable. SPK-28-A is commonly used for guiding, spacing, stopping, mounting, and component alignment. The keyway prevents slippage on the shaft when the shaft collar is used for positive drive. Equipment manufacturers benefit from the tightly controlled face to bore perpendicularity (TIR of ≤ .002"). Perpendicularity is critical for alignment when the shaft collar is used as a load bearing face, mechanical stop, or for mounting components such as gears or bearings. Proprietary processes have been developed by Ruland to maintain superior fit, finish, and holding power. SPK-28-A is stamped with the Ruland name and bore size for ease of identification. Halves are mated throughout the manufacturing process for proper fit and alignment. Forged screws test beyond ANSI standards to ensure maximum holding power. SPK-28-A is machined from solid bar stock to a fine burr free finish and sourced exclusively from North American mills. Ruland uses high grade 2024 aluminum for increased screw seating torque. It is RoHS2 and REACH compliant and manufactured in our Marlborough, MA factory under strict controls using proprietary processes.

PRODUCT SPECIFICATIONS

Dimensions

Bore B

1.7500 in

Bore Tolerance

+.002 in / +.0005 in

Keyway K

3/8 in

Width W

0.688 in

Outer Diameter OD

2 3/4 in

Width Tolerance

+.003 in / -.010 in

Clearance Diameter C MAX

3.046 in

Fastening Hardware

Forged Clamp Screw

1/4 - 28

Screw Material

Alloy Steel

Hex Wrench Size

1/4 in

Screw Finish

Black Oxide

Seating Torque

325 lb-in

Screw Location R

1.125 in

Number of Screws

2 ea

Additional Information

Material Specification

2024-T351 Aluminum Bar

Temperature

-40°F to 225°F
-40°C to 107°C

Finish Specification

Bright

Manufacturer

Ruland Manufacturing

Country of Origin

USA

Weight (lbs.)

0.2200

UPC

63452913571

CERTIFICATIONS/STANDARDS
ISO 9001:2015

Certified

Conflict Minerals

Compliant

RoHS3

Compliant

REACH

Compliant

CUSTOMER REVIEWS

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