Self-Aligning Ball B. SKF 1318 K

The SKF 1318 K self-aligning ball bearing, measuring 90 × 190 × 43 mm, compensates for misalignment during operation thanks to its hollow-spherical outer ring raceway.

The 1318 K self-aligning ball bearing is a double-row rolling bearing manufactured by SKF for demanding industrial applications. Manufactured from standard 100Cr6 rolling bearing steel, this design features a shared spherical outer ring raceway. This design enables the two rows of balls to automatically compensate for angular misalignment and shaft deflection during operation. With an outer diameter of 190 mm and a width of 43 mm, this design offers high radial load-carrying capacity with normal radial clearance.

What is the SKF 1318 K self-aligning ball bearing suitable for?

This double-row self-aligning ball bearing is primarily used where long shafts are prone to deflection or where misalignment occurs between bearing seats. The design primarily accommodates radial loads and ensures precise shaft guidance. The open design, without integrated seals, allows for flexible choice of lubricant. The sheet steel cage guides the rolling elements within a permissible temperature range of -30 to +150 degrees Celsius.

What are the special features of the tapered bore in the 1318 K self-aligning ball bearing?

The suffix ‘K’ denotes the tapered bore with a standardised taper ratio of 1:12 at a nominal diameter of 90 mm. This tapered bearing seat facilitates mounting on tapered shaft journals or, in combination with suitable mounting and withdrawal sleeves, on cylindrical shafts. When fitted correctly, the bearing is slid axially onto the tapered seat, allowing the internal operating clearance to be adjusted. The bearings are manufactured to tolerance class P0/PN or ABEC 1.