RMO FR8ZZ Imperial Flanged Ball Bearing for Go-Karts & Mowers
| Item No : | FR8ZZ / FR8-2Z (Inch Series Round Hole Flanged) |
| Size (d*D*B) : | 12.7×28.575×7.938×31.12 mm |
| Material : | Chrome Steel GCr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.023KG |
| MOQ : | 100 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
Sourcing replacement bearings for North American machinery or 1/2-inch imperial drive shafts? The FR8ZZ Inch-Series Flanged Ball Bearing (12.7×28.575×7.938mm / 1/2″ x 1-1/8″ x 5/16″) features a precision round bore engineered specifically for standard 1/2″ solid axles. Its integrated outer flange eliminates complex snap-ring grooves, allowing quick flush mounting on wheel hubs, lawnmower decks, and material handling carts. As a premier B2B bearing trader, we supply high-margin bulk orders of our field-tested RMO brand or source traceable global OEM brands for your specialized North American equipment imports.
⚙️Product Features:
- 1/2 Inch (12.7mm) Imperial Standard: Specifically dimensioned for 1/2″ power transmission shafts common in North American industrial, lawn, and recreational machinery.
- Round Bore Precision: Precision-ground round hole geometry ensures high concentricity and vibration-free rotation on smooth cylindrical axles.
- Integrated Flange Positioning: The outer flange provides an immediate physical stop against thin-walled plates and hub housings, reducing alignment assembly time.
- ZZ Dual Metal Shields: Double-stamped steel shields seal in high-speed grease while shielding the raceway against outdoor dirt, grass clippings, and shop debris.
- Flexible B2B Sourcing: Boost hardware distribution profit with our cost-effective RMO brand, or leverage our trade network to procure premium Japanese/American brand equivalents.
⚙️Product Application:
Tailored for 1/2-inch imperial shafting and light-to-medium outdoor or industrial machinery, the FR8ZZ is essential for:
- Lawn & Garden equipment (Lawnmower deck spindles, gauge wheels, and tractor pivots).
- Recreational vehicles (Go-kart wheel hubs, minibikes, and hand trucks/trolleys).
- North American industrial machinery, imperial power transmission lines, and packaging conveyors.
- Woodworking machinery, commercial laundry equipment, and fitness pulleys.
- Global hardware wholesalers, outdoor power equipment (OPE) repair suppliers, and machinery OEMs.
⚙️Precautions:
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
 |  |  |  |  |
⚙️Obtain Certificate:
About Rimao
Since its establishment in 2011, Rimao Bearing has combined international vision with local wisdom and injected innovative ideas into every bearing and pulley with its profound industry accumulation and unremitting pursuit of technology. We have not only passed CE and ROHS certification, but also set a new benchmark in the industry and led the development trend of the bearing industry.
We are not just a ball bearing and roller bearing importer and wholesaler. We provide real solutions to help you achieve the product and design goals set by your customers. With more than 20 years of production and sales experience, tens of thousands of models and specifications, we look forward to cooperating with you!
⚙️Technical Parameters:
| Model No. | FR8ZZ / FR8-2Z (Inch Series Round Hole Flanged) |
| Bearing Type | Inch Series Flanged Ball Bearing |
| Size | 12.7 (0.5 in) x 28.575 (1.125 in) x 7.938 (0.3125 in) x 31.12 (1.225 in) mm |
| Flange Width | ~ 1.57 mm / 0.062 in |
| Material | Chrome Steel (GCr15) + Steel Cage |
| Seal Type | Double-sided Metal Shields (ZZ Type) |
| Dynamic Load (Cr) | |
| Static Load (Cor) | |
| Max RPM | ~ 28,000 RPM (Grease) |
| Package | |
| Lead Time | |
| Shipping | |
| Payment | 100% TT, or 30% TT In Advance, 70% TT After Finished Production |
| Model No. | d | D | H | m |
| FR0 | 1.19 mm | 3.97 mm | 1.59 mm | 0.11 g |
| FR1 | 1.4 mm | 4.76 mm | 1.98 mm | 0.2 g |
| FR1-4 | 1.98 mm | 6.35 mm | 2.38 mm | 0.41 g |
| FR133 | 2.38 mm | 4.76 mm | 1.59mm | 0.13 g |
| FR133ZZS | 2.38 mm | 4.76 mm | 0 mm | 0.19 g |
| FR1-5 | 2.38 mm | 7.94 mm | 2.78 mm | 0.68 g |
| FR144 | 3.18 mm | 6.35 mm | 2.38 mm | 0.31 g |
| FR2-5 | 3.18 mm | 7.94 mm | 2.78 mm | 0.62 g |
| FR2-6 | 3.18 mm | 9.53 mm | 2.78 mm | 1.04 g |
| FR2 | 3.18 mm | 9.53 mm | 97mm | 1.51 g |
| FR155 | 3.97 mm | 7.94 mm | 2.78 mm | 0.59 g |
| FR156 | 4.76 mm | 7.94 mm | 2.78 mm | 0.47 g |
| FR166 | 4.76 mm | 9.53 mm | 3.18 mm | 0.9 g |
| FR3 | 4.76 mm | 7mm | 4.98 mm | 2.97 g |
| FR168B | 6.35 mm | 9.53 mm | 3.18 mm | 0.66 g |
| FR188 | 6.35 mm | 12.7 mm | 3.18 mm | 1.64 g |
| FR188ZZ | 6.35 mm | 12.7 mm | 4.762 mm | 2.5 g |
| FR4B | 6.35 mm | 15.88 mm | 4.98 mm | 4.78 g |
| FR1810 | 7.94 mm | 12.7 mm | 3.97 mm | 1.71 g |
| FR6 | 9.53 mm | 22.23 mm | 7.14 mm | 10.1 g |
| FR8 | 12.7 mm | 28.58 mm | 7.94 mm | 23 g |
leave a message
If you are interested in our products and want to know more details, please leave a message here, we will reply you as soon as we can.
You may also like
