Answering the buyer’s search: these 1″ inner diameter spacers are built to fit a wide range of wheel, axle, and bushing applications. The best choices listed here emphasize durable materials, universal compatibility, and easy installation for homeowners, hobbyists, and DIY mechanics. Each product is selected for specific use cases such as lawn mowers, carts, motorcycles, and industrial machinery. The following summary table helps compare key details at a glance.
| Product | Best For | Key Material | OD / ID |
|---|---|---|---|
| Uiuaquas 4 pcs 1″ Metal Alloy Spacer | Lawn care and small carts | Metal alloy (carbon steel) | ID 1″ / OD 1-3/8″ |
| AR-PRO 4-Pack 1″ Bushings | Wheel replacements for mowers | Carbon steel | ID 1″ / OD 1-3/8″ |
| Qagea Wheel Axle Spacer Kit 13 Pcs | Motorcycles and custom builds | CNC aluminum | ID 1″ / OD up to 1-1/2″ |
| HARFINGTON Rubber Spacer Set | Vibration isolation and general use | Rubber | ID 1″ / OD 2″ |
| TonGass 4-Pack Shaft Collars | Machinery and industrial use | Carbon steel | 1″ bore / 1-5/8″ OD |
Uiuaquas 4 Pcs 1″ Metal Alloy Spacer

Best for general replacement of 1″ bore wheel bushings on lawnmowers and light equipment. The kit includes four spacers with a 1″ inner diameter and 1-3/8″ outer diameter, suitable for wheelbarrows, carts, and hand trucks. Durable carbon steel alloy supports long-term use. The kit’s universal fit makes it a practical choice for homeowners replacing worn bushings in multiple devices.
Who this is for: homeowners and DIYers needing a versatile spacer kit for common lawn and garden equipment. Why selected: it provides multiple spacers in a single kit, simplifying replacements. Caution: ensure the inner diameter matches your axle bore before installation.
AR-PRO 4-Pack 1″ Bushings Carbon Steel

Best for mowing equipment and light utility vehicles requiring dependable 1″ bore bushings. This set features carbon steel construction for durability and resistance to wear. The 1″ inner diameter and 1-3/8″ outer diameter are designed for a broad compatibility range, including ride-on mowers, wheelbarrows, carts, and hand trucks.
Who this is for: users needing a robust, ready-to-install bushing kit for common 1″ bore applications. Why selected: carbon steel offers reliable strength at an economical price point. Caution: verify shaft shoulder dimensions to avoid play or misalignment.
Qagea Wheel Axle Spacer Kit 13 Pcs

Best for Harley motorcycles and custom builds requiring precise alignment. The kit includes spacers with ID 1″ and OD up to 1-1/2″, produced through CNC machining for precise fits. Installation typically places spacers on both sides of the axle between wheel bearing and frame to ensure secure alignment.
Who this is for: motorcycle enthusiasts and builders looking for a precise spacer set. Why selected: CNC machining emphasizes fit accuracy for critical wheel alignment. Caution: confirm axle diameter and hub hole compatibility before purchasing.
HARFINGTON 8pcs Rubber Spacer Set

Best for vibration isolation and passive cushioning in various assemblies. The kit uses neoprene rubber spacers with 2″ outer diameter and 1″ inner diameter, providing good vibration dampening and noise reduction. Suitable for home, boat, and light industrial projects where isolation is beneficial.
Who this is for: users needing vibration control in DIY projects or equipment repairs. Why selected: rubber material offers intrinsic damping properties. Caution: rubber can degrade under prolonged UV exposure or extreme temperatures outdoors.
TonGass 4-Pack Zinc Plated Shafts Collars

Best for machinery and industrial use requiring secure shaft collars with 1″ bore. The set offers 1″ bore, 1-5/8″ outer diameter, and a 5/8″ width with a screw clamp design for quick installation. Zinc plating adds corrosion resistance and durability for harsh environments.
Who this is for: professionals and DIYers needing reliable axial support on standard 1″ shafts. Why selected: screw clamp collars are user-friendly for adjustments. Caution: ensure the screw thread size (5/16-18) matches your hardware kit to avoid compatibility issues.
(4-Pack) 1” Bore Solid Steel Shaft Collars

Best for durable, industrial-grade shaft anchoring in machinery and equipment. These 1″ bore collars feature a zinc-coated carbon steel body and a 1-5/8″ outer diameter. The kit includes four collars with socket cup-point set screws, delivering reliable axial support and resistance to corrosion.
Who this is for: industrial users and serious hobbyists requiring robust shaft collars. Why selected: zinc coating extends life in challenging environments. Caution: verify screw type and torque requirements to ensure secure clamping.
Jiataban 13 Pcs Wheel Axle Spacer Kit 1″ ID

Best for Harley motorcycles and custom cruisers requiring precise spacer combinations. The kit offers 1″ inner diameter spacers with 1-1/2″ outer diameter, in a 13-piece assortment. Fitment covers a range from 1/4″ to 2″ outer diameters, depending on the piece.
Who this is for: motorcycle builders aiming for tailored axle spacing. Why selected: a wide elongate set enables compatibility with various hubs. Caution: confirm the exact outer diameter needed for your wheel hub before purchase.
Buying Guide: Key Considerations For 1″ ID Spacers
- Material matters: Choose carbon steel for strength, zinc plating for corrosion resistance, or rubber for vibration isolation depending on application.
- Dimension accuracy: Confirm bore size, outer diameter, and thickness match your axle, bearing, and hub specifications to avoid play or binding.
- Application scope: If you need universal fit across multiple devices, prefer sets offering multiple spacers with the same ID but different OD options.
- Installation ease: Screw clamp collars and CNC-machined spacers tend to install quickly with fewer tolerances.
- Durability vs. cost: Higher durability parts suit industrial use; budget-friendly options are often adequate for light-duty home projects.
- Compatibility checks: Always measure your axle shoulder, hub bore, and frame clearance to ensure proper seating and alignment.
FAQ
- What does 1″ ID mean in these spacers?
It refers to the inner diameter that fits around a 1″ axle or bore. - Are these spacers reusable after disassembly?
Yes, most spacers are designed for repeated installation, provided threads and contact surfaces remain undamaged. - Which material lasts longest outdoors?
Metal alloy and carbon steel with plating resist wear; rubber spacers are more susceptible to UV and temperature effects. - How do I know the right outer diameter to choose?
Compare the hub bore and mounting flanges; select an OD that ensures a snug fit without rubbing. - Can I use these spacers for motorcycles?
Some spacers are suitable for motorcycles; verify the exact diameter and mounting method before purchase. - Do I need additional fasteners when installing?
Yes, ensure compatible bolts, screws, or nuts match the collar or spacer design to secure the assembly.