Page 695 - Rollingbearings

Designation system

Group 4
4.1 4.2 4.3 4.4 4.5 4.6

Group 4.6: Other variants
CL7A Pinion bearing, superseded by CL7C
CL7C High-performance design
CLN Tighter tolerances for ring widths and total (abutment) width in accordance with ISO
tolerance class 6X
PEX SKF Explorer bearing, used only when same-sized basic design bearing and SKF
Explorer bearing are available
V001 CL7C and /2
VA321 Optimized internal design
VA606 Crowned raceway on the outer ring, logarithmic proile on the inner ring and special heat
treatment
VA607 Same as VA606, but other outside diameter tolerance
VA901 Contact seal on both sides, outer ring side faces with lubrication grooves, sealing ring
between the inner rings
VA902 Contact seal on both sides, without relubrication features, sealing ring between the inner
rings
VA903 Contact seal on both sides, outer ring side faces with lubrication grooves, without sealing
ring between the inner rings
VA919 Contact seal on both sides, relubrication features in the outer rings, annular groove in
the bore and lubrication holes in the inner ring guide langes
VA941 Contact seal on both sides, inner ring inner side faces with lubrication grooves, inner
rings with annular grooves in the bore and lubrication holes in their outer shoulders
VB022 Chamfer dimension of large outer ring side face 0,3 mm
VB026 Chamfer dimension of large inner ring side face 3 mm
VB061 Chamfer dimension of large inner ring side face 8 mm
VB134 Chamfer dimension of large inner ring side face 1 mm
VB406 Chamfer dimension of large inner ring side face 3 mm and of large outer ring side face
2 mm
VB481 Chamfer dimension of large inner ring side face 8,5 mm
VC027 Modiied internal geometry for increased permissible misalignment
VC068 Tighter geometrical tolerances and special heat treatment
VE141 One locating slot (notch) in the outer ring
VE174 One locating slot (notch) in the large side face of the outer ring, tighter geometrical
tolerances
VQ051 Modiied internal geometry for increased permissible misalignment
VQ117 Special radial and axial run-out tolerances
VQ267 Tighter inner ring width tolerance to ± 25 µm
VQ492 Special inner ring width tolerance 8
VQ494 Tighter radial run-out tolerances
VQ495 CL7C with tighter or shifted tolerance range for the outside diameter
VQ506 Tighter inner ring width tolerance
VQ507 CL7C with tighter or shifted tolerance range for the outside diameter
VQ523 CL7C with tighter inner ring width tolerance and tighter or shifted tolerance range for the
outside diameter
VQ601 Geometrical tolerances to ABMA tolerance class 0 (inch bearing)

Group 4.5: Lubrication

Group 4.4: Stabilization

Group 4.3: Bearing sets, matched bearings
DB.. Two bearings matched for mounting back-to-back. A number immediately following the
DB identiies the design of the ring spacers.
DF.. Two bearings matched for mounting face-to-face. A number immediately following the
DF identiies the design of the ring spacer.
DT.. Two bearings matched for mounting in tandem. A number immediately following the DT
identiies the design of the ring spacers.
C... Special clearance
The two- or three-digit number immediately following the C is the mean axial internal
clearance in μm. The range remains the same as speciied in table 6, page 679.

In addition to their designation, double row bearings are also identiied by their design variants/features (product tables, page 762). Some of these
features may not be part of the bearing designation, but are always part of the design variants/features (Variants/features, page 674).

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