--- product_id: 47482426 title: "BFM-4M-NN Flange Mounted Needle-Roller Bearing, Non-Aligning Type, 2 Bolt, 4 mm Bore Diameter, Steel, Metric" brand: "spyraflo" price: "4 zł" currency: PLN in_stock: false url: https://www.desertcart.pl/products/47482426-bfm-4m-nn-flange-mounted-needle-roller-bearing-non-aligning store_origin: PL region: Poland --- # 2-bolt steel flange 4mm precision bore -30°C to 100°C operating range BFM-4M-NN Flange Mounted Needle-Roller Bearing, Non-Aligning Type, 2 Bolt, 4 mm Bore Diameter, Steel, Metric **Brand:** spyraflo **Price:** 4 zł **Availability:** ❌ Out of Stock ## Summary > ⚙️ Elevate your machinery with precision and resilience — don’t let your setup fall behind! ## Quick Answers - **What is this?** BFM-4M-NN Flange Mounted Needle-Roller Bearing, Non-Aligning Type, 2 Bolt, 4 mm Bore Diameter, Steel, Metric by spyraflo - **How much does it cost?** 4 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/47482426-bfm-4m-nn-flange-mounted-needle-roller-bearing-non-aligning) ## Best For - spyraflo enthusiasts ## Why This Product - Trusted spyraflo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Fit:** Designed for shafts hardened to Rockwell C-58 to C-64, ensuring reliable performance. - • **Ready to Mount:** Prelubricated and non-aligning design simplifies installation and compensates for misalignment. - • **Smooth Operator:** Cage-spaced needle rollers minimize friction, vibration, and noise for seamless rotation. - • **Temperature Tough:** Operates flawlessly from -22°F to 212°F (-30°C to 100°C) for versatile environments. - • **Compact Powerhouse:** Steel flanged housing delivers shock resistance and durability in tight spaces. ## Overview The BFM-4M-NN is a steel flanged, non-aligning needle roller bearing with a 4mm bore and two-bolt mounting. Engineered for medium loads and high-speed rotational motion, it features a cage that evenly spaces needle rollers to reduce friction and noise. Suitable for hardened shafts (Rockwell C-58 to C-64), it operates reliably across a wide temperature range (-30°C to 100°C) and comes prelubricated for easy installation in compact, demanding applications. ## Description This Spyraflo BFM-4M-NN steel flanged non-aligning needle roller bearing unit with two bolt holes and a 4mm bore diameter is suitable for applications with medium loads, high speeds, and rotational motion only (no oscillation or linear motion). The ready-to-mount flanged housing is made of steel for strength, resistance to shock loads, and lighter weight than cast iron. Its low profile, two bolt-hole design is suitable for applications with limited space. The bearing insert in the housing contains through-hardened, drawn-cup needle rollers retained by a cage. The cage spaces the needle rollers for even load distribution and prevents contact to minimize friction, vibration, and noise. Instead of rolling on an inner raceway, the rollers run directly against the shaft. Suitable shafts must be hardened to Rockwell C-58 to C-64, and have a 16 RMS (root mean square) finish. This electrically conductive, self-aligning bearing compensates for static misalignments and comes prelubricated with lithium-complex grease. This flanged bearing is suitable for use in various applications including electrical switchgear, document handling machines, and motors, among others. Specifications Shaft requirements Rockwell C-58 to C-64 hardness rating, with a minimum surface finish of 16 RMS Static misalignment +/- 5 degrees Temperature range -22 to +212 degrees F (-30 to +100 degrees C)Mounted bearings combine a bearing mounted inside a housing unit. The bearing housing replaces the need for a casting or weldment to position the bearing securely for reliable operation, and its design determines the type of insert bearing. Insert bearings use rolling elements (ball, cylindrical, spherical, barrel, needle, spindled, or tapered) to maintain the separation between moving parts to reduce rotational friction, and to support radial and axial loads. Available in a variety of materials and mounting configurations, mounted bearings can be one- or two-piece, they can have an extended inner ring and locking device, and they can have seals and end caps that retain lubrication and protect the working parts of the bearing from environmental debris. Mounted bearings support shafts in a variety of mounting configurations (flange block, hanger, pillow block, and take-up block), and are used in a range of applications from light duty shaft guidance on conveyors to road building equipment and crushers. Spyraflo manufactures bearings and bearing accessories. The company, founded in 1961 and headquartered in Peachtree City, GA, meets International Organization for Standardization (ISO) standard 9001:2008. ## Features - Steel flanged housing with two bolt holes provides strength and shock resistance - Drawn-cup needle roller bearing insert with a 4mm bore supports medium loads and rotational motion only - Cage evenly spaces needle rollers to help distribute the load and minimize friction, vibration, and noise - Suitable for shafts with a Rockwell C-58 to C-64 hardness rating - Operating temperatures range from -22 to +212 degrees F (-30 to +100 degrees C) ## Product Details - **Brand:** Spyraflo - **Material:** Steel - **Item Thickness:** 22.5 Millimeters - **Specification Met:** Iso - **Bearing Type:** Roller Bearing ## Images ![BFM-4M-NN Flange Mounted Needle-Roller Bearing, Non-Aligning Type, 2 Bolt, 4 mm Bore Diameter, Steel, Metric - Image 1](https://m.media-amazon.com/images/I/71UgAelvwZL.jpg) ![BFM-4M-NN Flange Mounted Needle-Roller Bearing, Non-Aligning Type, 2 Bolt, 4 mm Bore Diameter, Steel, Metric - Image 2](https://m.media-amazon.com/images/I/717VGWBeAnL.jpg) ![BFM-4M-NN Flange Mounted Needle-Roller Bearing, Non-Aligning Type, 2 Bolt, 4 mm Bore Diameter, Steel, Metric - Image 3](https://m.media-amazon.com/images/I/717ky7Gt-LL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/47482426-bfm-4m-nn-flange-mounted-needle-roller-bearing-non-aligning](https://www.desertcart.pl/products/47482426-bfm-4m-nn-flange-mounted-needle-roller-bearing-non-aligning) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-24*