688 bearing dimensions are ID (inner diameter)/Bore=8mm
OD (outer diameter)=16mm Width/Height/thickness=5mm
Boundary Dimensions : 8mm x 16mm x 5mm
688ZZ Bearing, measuring 8mm x 16mm x 5mm, made from durable 52100 alloy steel, commonly known as chrome steel, each Comes with double metal shields (ZZ) to keep out dust and dirt, plus it’s pre-lubricated with grease so it’s ready to roll right away.
688ZZ Ball Bearing
Deep groove ball bearings
Dimensions: 8*16*5 mm/Metric
ID (inner diameter)/Bore=8mm
OD (outer diameter)=16mm
Width/Height/thickness=5mm
Size: 8mm x 16mm x 5mm
Shield Double Metal Shields for dust protection (ZZ)
