W1 / RM1 Track Rollers categorized as double-row, double sealed / shielded, radial, deep groove ball bearings
W1 / RM1 Track Rollers are made of chrome steel or stainless steel
W1 / RM1 Track Rollers are closed with rubber seals(2RS) / metal shields(ZZ) to protect the bearing from dust or any possible contamination
W1 / RM1 Track Rollers are lubricated with grease.
Name: Track Rollers, Guide Rollers, Guide Way Bearings
Item: W1 / RM1-ZZ, W1X / RM1-2RS
Type: Double-shielded ZZ / Double-sealed 2RS
Size: 4.763 mm x 19.56 mm x 7.87 mm x 7.93 mm x 11.86 mm
Bore Diameter (d): 4.763 mm
Outer Diameter (D): 19.56 mm
Inner / Outer Width (B): 7.87 mm
Center Diameter (A1): 7.93 mm
Center Diameter (A2): 11.86 mm
Radial Play: C0 / C2 / C3
Rings Material: Chrome steel 100Cr6 or Stainless steel SUS 440C
Balls Material: Chrome steel 100Cr6 or Stainless SUS 440C
Cage Material: Nylon(PA66)
Seal Materil: NBR+SPCC
Seal Type: Non-contacted / Light Contacted / Heavy Contacted
Shield Material: SPCC
Lubrication / Grease: SHELL / MOBIL / KYODO / KLUBER / EXXON / HTHS
Bearing Brand: Neutral / OEM