SKU: 21721199724

3-1/2" Two-Piece Split Clamp-Type Shaft Collar, Aluminum

Sale price$88.33 Regular price$98.14
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Description

3-1/2" Two-Piece Split Clamp-Type Shaft Collar, AluminumCan be placed anywhere on shaft 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 2 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. They can be completely disassembled and placed anywhere on a shaft. Precision machined, non marring,

  • Can be placed anywhere on shaft
  • 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
2-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. They can be completely disassembled and placed anywhere on a shaft. 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 (32LXXX and 32SXXX parts).
 
 

Specifications

Part Number  

8A308

Series

Signature

Material

Aluminum

Alloy

2024-T351

Finish

Shiny

Type

Low Profile

Approximate Weight

0.72 lb

Country of Origin

USA

UPC Code

662786008054

RoHS2 Compliant

Yes

REACH Compliant

Yes

 

Dimensional Attributes

Bore Size

3-1/2 in

Outside Diameter

4.750 in

Width

0.875 in

Recessed Screw

No

Screw Size

3/8-24 x 1

Screw Material

Alloy Steel
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21721199724

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4.2 ★★★★★
Based on 1984 reviews
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Product Reviews
D
Verified Purchase
Dariusz Grabowiecki
San Leandro, US
★★★★★ 5
Amazon Essentials
Size: 8, Color: Black
Good ,nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
G
Verified Purchase
George M. Occhipinti
Grantham, US
★★★★★ 5
Very handsome shoe
Size: 7, Color: Brown
Beautifully made shoe. Comfortable, great fit. Very handsome on foot. Can wear with anything. Very pleased
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
T
Verified Purchase
toddt0606DC
Draper, US
★★★★★ 5
From a Long Time Hard Sole Dress Shoe Wearer, These are a Must Have!
Size: 12, Color: Blue
I have been wearing hard sole dress shoes for decades and with the full COVID shift to dressing super casual in a professional work environment, I was in the market for some more casual let dressy shoes that were a heck of a lot more comfortable and flexible than my hard soles so I thought I would give this brand and style a try. Oh man, I'm in love. These give you that dressier look yet you can totally dress them down with jeans or cordouroys, so versatile. As I did with my hard soles, I inserted one of my Nike Air in soles and man, these are so comfortable I bought navy and brown! I usually wear these with thin dress socks and they go perfectly with any type of suit set, a no brainer purchase here. I'm a 12 and bought a 12, perfect fit, not to skinny, not to wide, just right. Bottom sole grip is impressive, never felt unstable, solid rubber sole here. I decided to lace them up so there are not tying and the tongue does slip down sometimes so with this feature, best to use a metal shoe horn, then it's super easy to slide them on, they seem to take a beating and remain clean too, I've definitely scuffed them up against many things and still no damage, it's crazy, must have a great finish. NOTE TO Note to MANUFACTURER/SELLER - You need to make a version in GRAY in this specific style and I will buy them instantly, and I assure you they will be incredibly popular! Really not sure why there isn't more colors in these like gray, shades of gray, maybe red, lighter blue and maybe some with different tones in standard colors. Casual dress shoe wearers are looking for new and exciting bold colors so this is the perfect shoe type to deliver on that.
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Reviewed in the United States on January 6, 2024
Z
Verified Purchase
Z. Ed
Charlottesville, US
★★★★★ 5
Finally, a dress shoe that actually feels like a sneaker!
Size: 8.5, Color: Dark Brown
I was honestly super skeptical about buying shoes on Amazon, especially "dress sneakers." Usually, they either look incredibly cheap in person or they completely destroy your heels within an hour. I am so glad I took a chance on these Bruno Marcs. I commute to campus and take the bus almost every day, so I end up doing a ton of walking. I needed something that looked sharp and put-together, but I absolutely refused to sacrifice comfort for a long day on my feet. These completely hit the mark. Right out of the box, there was zero break-in period—no stiffness, no pinching, and no blisters. They are incredibly lightweight, and the material actually looks premium, not like that shiny, fake plastic you sometimes get at this price point. The traction on the bottom is surprisingly good too, which is a lifesaver when I'm rushing to catch my bus on rainy mornings. If you’re on the fence, just get them. It’s rare to find a shoe that balances looking professional with feeling exactly like your favorite weekend sneaker. Easily one of the best wardrobe purchases I've made in a while!
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Reviewed in the United States on April 4, 2026
M
Verified Purchase
Milagros Ramos
Carnegie, US
★★★★★ 4
High quality, perfect color and very nice price!
Size: 14, Color: Brown, Size: 14, Color: Brown
I bought this shoes for my husband's Christmas present, so he didn't try yet. So far, the color is perfect! I feel like he can wear this shoes with different outfits, for the price it seems hight quality, it is not heavy at all. The shoe features a soft, comfortable lining and the sole is perfect because it is non-slip.
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Reviewed in the United States on December 4, 2025

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