roller needle bearings

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Basic type NUKR series
Bolt shaft type curve roller NUKR series is a full double column cylindrical roller structure.(2) Eccentric sleeve NUKRE series
The bolt shaft curve roller NUKRE series and the NUKR series are similar to the full double column cylindrical roller structure, the only difference is that the NUKRE series has an eccentric sleeve on the bolt shaft.(3) Double-roll channel PWKR series
The bolt shaft curve roller PWKR series is similar to the NUKR series, with a full double column cylindrical roller structure. The only difference is that the outer ring of PWKR is a double roller channel, and the two column rollers are separate.（4) NUKRA series with side roller
The NUKRA series is similar to the NUKR series, the difference is that NUKRA is a two-headed bolt, and a side roller is added to the end of the bolt shaft, resulting in structural changes. NUKRA is a single column full cylindrical roller structure.
(5) The KR series
KR series curve roller bearing is a needle holder assembly bearing. The outer ring is axially guided by the edge on the bolt and the rim fixed on the bolt, which can withstand heavy load and medium speed. Because there is more grease storage space inside the bearing, the lubrication cycle should be extended.KR is similar to NUKR, except that KR has a stop ring on both ends, while NUKR only has a stop ring on one end.
(6) The KRV seriesKRV series curve roller bearing is full needle roller bearing, the outer ring is axially guided through the edge on the bolt and the rim fixed on the bolt, which can withstand heavy load but lower speed, but grease must be added frequently.
KRV is similar to NUKR, except that KRV has a stop ring on both ends, while NUKR only has a stop ring on one end.