LFR50-8 KDD(R50/8-6 ZZ), LFR50-8 NPP(R50/8-6 2RS) Track Rollers categorized as double-row, double sealed / shielded, radial, deep groove ball bearings, and closed with rubber seals(NPP) or metal shields(KDD) to protect the bearing from dust or any possible contamination, lubricated with grease as well.
Name: Track Rollers, Guide Rollers, Guide Way Bearings
Item: LFR50-8 KDD(R50/8-6 ZZ), LFR50-8 NPP(R50/8-6 2RS)
Type: Double-sealed NPP / Double-shielded KDD
Size: 6 mm x 8 mm x 24 mm x 11 mm x 11 mm x 14 mm
Shaft Diameter (dw): 6 mm
Bore Diameter (d): 8 mm
Outer Diameter (D): 24 mm
Outer Ring Width (C): 11 mm
Inner Ring Width (B): 11 mm
Center Diameter (A): 14 mm
Radial Play: C0 / C2 / C3
Rings/Balls Material: Chrome steel 100Cr6
Cage Material: Nylon(PA66+25%GF)
Seal Materil: NBR+SPCC
Shield Material: SPCC
Lubrication: Chevron SRI grease with 30% to 40% filled
Bearing Brand: Neutral