| material | bearing type | bearing part No. | cage | shields/seals | radial clearance | tolerance class |
|---|---|---|---|---|---|---|
| H | 688 | J | ZZ | MC3 | ||
| F | 608 | TW | 2RS | MC4 | P6 | |
| MR | 52 | W | ZZ | MC2 | P5 | |
| S | MF | 128 | W | TTS | MC3 | P6 |
| S | ER | 1458 | W | ZZS | C0 | A3 |
| H | 6205 | RJ | 2RS | C3 | ||
| F | 6706 | W | 2RU | C0 | ||
| S | R | 144 | J | ZZS | MC4 | A5P |
| R | 10 | RJ | ZZ | C2 | ||
| F | 3-8M | TP |
material:
no symbol=chrome steel GCr15/SAE52100/DIN100Cr6/SUJ2
H=metric series stainless steel
S=inch series or MR series stainless steel
bearing type:
R=inch
FR=inch with flange
RW=inch with extended inner ring
FRW=inch with extended inner ring and flange
no symol=metric standard
F=metric with flange
MR=special metric
MF=special metric with flange
cage:
J=steel ribbon type
W=steel crown type
TW=nylon crown type
RJ=riveted steel ribbon type
V=full complement
TA=phenolic resin full machine, outer ring guided
TB=phenolic resin full machine, inner ring guided
shields/seals:
ZZ=pressed steel shields(non-removable), Z is single shield.
2RS=contact rubber seals, RS is single seal.
2RU=non-contact rubber seals, RU is single seal.
ZZS=steel shields with snap ring
TTS=teflon seals with snap ring
radial clearance:
standard ball bearings: C2, C0(CN), C3, C4, C5
miniature ball bearings: MC1, MC2, MC3, MC4, MC5, MC6
tolerance class:
ABEC-1(P0), ABEC-3(P6), ABEC-5(P5), ABEC-7(P4), ABEC-9(P2)