618/1250-M

The 618/1250-M is a single-row deep groove ball bearing belonging to the extra-light 618 series, engineered for applications where space is a critical constraint. Its defining characteristic is an exceptionally thin cross-section relative to its massive 1250 mm bore diameter. This design allows for significant weight and space savings, making it an ideal solution for large, yet compact, machinery designs such as in wind turbine main shafts, tunneling equipment, and large-scale indexing tables. The deep, uninterrupted raceway grooves enable it to handle moderate radial and axial loads in both directions, offering versatile performance within a remarkably slender profile.

A key advantage of the 618/1250-M lies in its robust construction, highlighted by the "M" designation, which signifies a solid, machined brass cage. This two-piece, roller-guided cage provides exceptional strength and stability, making it superior to standard steel cages in applications involving high speeds, significant vibration, or high ambient temperatures. The brass cage minimizes friction and wear while ensuring precise guidance of the rolling elements, which contributes to cooler operation, enhanced reliability, and a longer overall service life. This combination of a space-saving design and a high-performance brass cage makes the 618/1250-M a dependable choice for large-scale, critical applications where both size efficiency and operational durability are paramount.

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