Bearing data
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| Single bearings | Matched bearings
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| Dimension
standards | Boundary dimensions:
ISO 355:2007 Except for:
| Boundary dimensions:
ISO 355:2007 (single bearing) |
| Tolerances
For additional information (→ Tolerances) |
Except for:
Values: ISO 492:2014 (table 1, table 2, table 3) The inner rings with roller and cage assembly and outer rings of SKF single row tapered roller bearings with the same basic designation are interchangeable. The tolerance for the total abutment width T of the bearing is not exceeded if the cups and cones are interchanged. |
Values:
Total width tolerances:
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| Internal clearance
For additional information (→ Bearing internal clearance) | Obtained after mounting, depending on adjustment against a second bearing. |
Standard: table 5 Other clearances are identified by the designation suffix C. Values are valid for unmounted bearing sets under measuring loads of:
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| Preload
For additional information (→ Bearing preload) | Obtained after mounting, depending on adjustment against a second bearing. | –
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| Misalignment |
TQ-line bearings (designation suffix Q), SKF Explorer and SKF E2 bearings: ≈ 2 to 4 minutes of arc If misalignment cannot be avoided, SKF recommends not to use basic design bearings. The permissible angular misalignment between the inner and outer rings depends on the size and internal design of the bearing, the radial internal clearance in operation and the forces and moments acting on the bearing. As a result, only approximate values are listed here. Any misalignment increases bearing noise and reduces bearing service life. |
If misalignment cannot be avoided, SKF recommends using a face-to-face arrangement. Any misalignment increases bearing noise and reduces bearing service
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| Dimension
standards |
Boundary dimensions:
ANSI/ABMA Standard 19.2-1994 has replaced the above standard, but does not include dimensions. |
| Tolerances
For additional information (→ Tolerances) |
Values: ANSI/ABMA Standard 19.2-1994 (table 6) Deviating width tolerances for cups and cones are identified by a designation suffix (table 7). The inner rings with roller and cage assembly and outer rings of SKF single row tapered roller bearings with the same basic designation are interchangeable. The tolerance for the total abutment width T of the bearing is not exceeded if the cups and cones are interchanged. |
| Internal clearance
For additional information (→ Bearing internal clearance) | Obtained after mounting, depending on adjustment against a second bearing.
|
| Preload
For additional information (→ Bearing preload) | Obtained after mounting, depending on adjustment against a second bearing. |
| Misalignment |
TQ-line bearings (designation suffix Q):
≈ 2 to 4 minutes of arc If misalignment cannot be avoided, SKF recommends not to use basic design bearings. The permissible angular misalignment between the inner and outer rings depends on the size and internal design of the bearing, the radial internal clearance in operation and the forces and moments acting on the bearing. As a result, only approximate values are listed here. Any misalignment increases bearing noise and reduces bearing service life. |
