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- NAST12ZZ Yoke Track Roller Bearing
- 1.huge lubricant space 2.inner ring is partial load 3.Contain outer ring,inner ring,needle cage assembly and retaining rings
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- NATR08PP Yoke type Track Roller Bearing
- 1.have huge lubricant space 2.inner ring is partial load 3.similar serie NATV can sustain heavier load under low speed
