
8x12x12mm HF0812 Drawn Cup One Way Needle Roller Bearing
| Item No : | HF0812 (HF 0812) |
| Size (d*D*B) : | 8x12x12mm |
| Material : | ST14 Steel with Chrome Steel GCr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.0035KG |
| MOQ : | 100 pcs |
⚙️Product Description:
Sourcing high-torque backstop or indexing components for compact mechanical designs? Our RMO Brand HF0812 One Way Needle Roller Bearing (8x12x12mm) is precision-engineered to transmit torque in one direction while allowing free rotation in the opposite direction. Featuring a premium drawn cup design with stainless steel springs, it delivers compact index performance. As an expert B2B trader, we supply cost-effective RMO factory-direct wholesale lots or seamlessly source top global premium legacy brands to secure your margins.

⚙️Product Features:
- Reliable One-Way Clutch Mechanism: Allows precision torque transmission in one direction with zero backspin, paired with low-friction free-wheeling in the reverse direction.
- Compact Drawn Cup Profile: Measuring precisely 8x12x12mm, the thin-walled outer ring provides an incredibly space-saving and lightweight design for miniature assemblies.
- High-Quality Steel & Springs: Internal rollers are forged from GCr15 bearing steel, supported by durable steel springs to ensure instant locking and a prolonged lifecycle.
- High Indexing Frequency: Capable of handling high repetitive indexing actions smoothly, minimizing mechanical wear and operational lag.
- Flexible B2B Sourcing Options: Maximize your trade profit margins with direct bulk orders of our trusted RMO brand, or request authentic international premium brands via our trusted sourcing network.
⚙️Product Application:
Built to provide reliable backstop, indexing, and overwriting capabilities in small mechanisms, the HF0812 bearing is widely utilized in:
- Fitness equipment, fishing reels, and home consumer appliances.
- Paper feeding mechanisms in printers, copiers, and office automation hardware.
- Two-speed gearboxes, indexing drives, and miniature industrial conveyor systems.
- Power tools, textile machinery spinning units, and automated control linkages.
- Global industrial spare parts wholesalers, hardware distributors, and mechanical OEM buyers.
⚙️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. |
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⚙️Technical Parameters:
| Model No. | HF0812 (HF 0812) |
| Bearing Type | Drawn Cup One Way Needle Roller Bearing |
| Size | 8x12x12mm |
| Outer Cup Material | ST14 steel (Deep-drawn Carbon Steel / Case Hardened Precision Sleeve) |
| Needle Rollers Material | Chrome Steel GCr15 (Through-Hardened) |
| Spring Material | Stainless Steel Springs |
| Cage Material | PA66-GF / Glass fiber reinforced PA66 |
| Key Advantage | One-Way Locking, Compact Profile, Instant Clutching |
| Brand | RMO/Neutral/OEM/Other Brands |
| Package | Individual plastic bag, plastic tube or original RMO brand box |
| Lead Time | 3-5 days for stock; 7-15 days for bulk orders |
| Shipping | Express (DHL/FedEx/UPS), Air Freight, Sea Freight |
| Payment | 100% T/T, or 30% T/T In Advance, 70% T/T After Finished Production |

| Model No. | d | D | H | m |
| HF0612 | 6 mm | 10 mm | 12 mm | 3 g |
| HF0812 | 8 mm | 12 mm | 12 mm | 3.5 g |
| HF1012 | 10 mm | 14 mm | 12 mm | 4 g |
| HF1216 | 12 mm | 18 mm | 16 mm | 11 g |
| HF1416 | 14 mm | 20 mm | 16 mm | 13 g |
| HF1616 | 16 mm | 22 mm | 16 mm | 14 g |
| HF1816 | 18 mm | 24 mm | 16 mm | 16 g |
| HF2016 | 20 mm | 26 mm | 16 mm | 17 g |
| HF2520 | 25 mm | 32 mm | 20 mm | 30 g |
| HF3020 | 30 mm | 37 mm | 20 mm | 36 g |
| HF3520 | 35 mm | 42 mm | 20 mm | 40 g |
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