SKF deep groove ball bearing specifications

SKF deep groove ball bearing

SKF metric single row deep groove ball bearings

Dimension standards

Boundary dimensions: ISO 15
Snap rings and grooves: ISO 464

Tolerances

Normal, P6, or P5 on request (refer to bearing tolerance chart)

For SKF Explorer bearings:

  • Dimensional tolerances to P6 and tighter width tolerance:
    • D ≤ 110 mm → 0/ -60 μm
    • D > 110 mm → 0/ -100 μm
  • Run-out:
    • D ≤ 52 mm → P5
    • 52 mm < D ≤ 110 mm → P6
    • D > 110 mm → Normal

Internal clearance

Single bearings and matched bearing pairs arranged in tandem
Normal
Check availability of C2, C3, C4, C5, reduced ranges of standard clearance classes or partitions of adjacent classes.

Values: ISO 5753-1 (please refer to bearing internal clearance chart)
Values are valid for unmounted bearings under zero measuring load.

Matched bearing pairs arranged back-to-back or face-to-face
Supplied either with clearance or preload:
CA - small axial internal clearance
GA - light preload

Values:
Values are valid for unmounted bearing sets under zero measuring load.

Permissible misalignment

Single bearings
≈ 2 to 10 minutes of arc

Misalignment increases bearing noise and reduces bearing service life, and when it exceeds the guideline values these effects become particularly noticeable.

Matched bearing pairs
Any misalignment increases bearing noise and reduces bearing service life. For additional information, contact the SKF application engineering service.

SKF metric stainless steel deep groove ball bearings

Dimension standards

Boundary dimensions: ISO 15

Except for:

  • bearings with suffix X
  • bearings with prefix WBB1
  • outer ring flange of flanged bearings: ISO 8443

Tolerances

Normal
P6 or P5 on request

Internal clearance

Normal
Check availability of other clearance classes

Values: ISO 5753-1, except for d < 10 mm
Values are valid for unmounted bearings under zero measuring load.

Permissible misalignment

≈ 2 to 10 minutes of arc

Misalignment increases bearing noise and reduces bearing service life, and when it exceeds the guideline values these effects become particularly noticeable.

SKF double row deep groove ball bearings

Dimension standards

Boundary dimensions: ISO 15

Tolerances

Normal

Values: ISO 492

Internal clearance

Normal
Check availability of C3 clearance class

Values: ISO 5753-1
Values are valid for unmounted bearings under zero measuring load.

Permissible misalignment

≤ 2 minutes of arc

Misalignment increases bearing noise and reduces bearing service life, and when it exceeds the guideline values these effects become particularly noticeable.