2MMC9104WICRDULA3188轴承详细注解：

H,R,J,P† internal fit
(† P fit is standard in Conrad Bearings)
Contact Angle:
2=15°
3=25°
Level of Precision:
MM superprecision • ABEC-7
MMV super high precision (HG) between ABEC-7
and ABEC-9
MMX ultraprecision • ABEC9
Hybrid
Ceramic
Series:
9300  ultra light
9100  extra light
99100 extra light
200   light
300   medium
Bore Size:
(04 and up,
multiply these
last two numbers
by 5 to get bore
in millimeters:)
00 10mm
01 12mm
02 15mm
03 17mm
04 20mm
Construction:
K Conrad
WI angular contact; low shoulder on outer ring
WO angular contact; low shoulder on inner ring
WN angular contact; low shoulder on both rings
HX angular contact; low shoulder on both rings
Retainer: No retainer callout implies
Fafnir standard
PRB molded nylon cage
PRC molded reinforced nylon cage
PRF, PR G special high performance material
MBR machined bronze cage
SMBR machined silicon-iron-bronze cage
CR composition cage (non-metallic)
Preload: Universal Flush Ground
SUX  single bearing, ultra light
SUL   single bearing,  light
SUM  single bearing, medium
SUH  single bearing, heavy
DUX  duplex pairs of bearings, ultra light
DUL  duplex pairs of bearings, light
DUM  duplex pairs of bearings, medium
DUH  duplex pairs of bearings, heavy
TUX   triplex set of bearings, ultra light
TUL   triplex set of bearings, light
TUM  triplex set of bearings, medium
TUH  triplex set of bearings, heavy
QUX  quadruplex  set of bearings, ultra light
QUL  quadruplex  set of bearings, light
QUM  quadruplex  set of bearings, medium
QUH  quadruplex  set of bearings, heavy
an example
of a specif-
ication
number for
other than
standard