SKF deep groove ball bearings are precision components available in open, double-sealed, or double-dust-covered configurations. Sealed bearings feature grooves on the outer ring for mounting seals or dust covers, making them suitable for high-speed and even ultra-high-speed operation.
The basic types of SKF deep groove ball bearings include open, double-sealed, or double-dust-covered variants. For production requirements, sealed bearings feature grooves on the outer ring for mounting seals or dust covers, though they may also be supplied as open bearings.
Tolerances
Basic SKF single-row deep groove ball bearings employ standard tolerances. Bearings with tighter manufacturing tolerances can be supplied upon customer request.
Bearing Clearance
Basic types of SKF single-row deep groove ball bearings employ the basic clearance group. Bearings with increased clearance can be supplied upon request.
Cages
Basic types of SKF deep groove ball bearings without a cage suffix in the designation feature stamped steel cages. Bearings with the suffix M in the designation have solid brass cages guided by the balls.
Alignment
Due to the limited self-aligning capability of SKF deep groove ball bearings, high concentricity of the bearing housing is essential. Poor concentricity compromises smooth operation, increases bearing stress, and reduces service life. To maintain additional stresses within permissible limits, SKF deep groove ball bearings permit only minimal deflection angles, which also depend on load magnitude.
Permissible Speed
Under certain conditions, the reference speed for SKF bearings may exceed the limit speed. Specific operating conditions must be considered by determining the heat generated at the permissible operating speed.
Heat Treatment
SKF deep groove ball bearings, following heat treatment, may operate at temperatures not exceeding 150°C. Bearings with an outer ring diameter exceeding 240 mm may operate at temperatures not exceeding 200°C (note the usage restrictions for sealed bearings).
“Do you see over yonder, dear client, those tricky equipment bottlenecks, those wear-and-tear troubles that stall your production? I intend to arm your machines with genuine imported bearings—and stand by with technical support to slay every glitch that comes your way.”
— Hengzhou Bearings






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