RKU Series Track Rollers

NADELLA Type Linear Guide Roller Bearing 
Changzhou Xuanmao Bearing

We supply heavy‑duty linear guide rollers interchangeable with NADELLA RKU75, RKUR75, RKU95, RKUR95, RKU115, RKUR115 (Heavy‑Line System). These are concentric / eccentric locating guide rollers built with tapered roller bearings, convex raceway (radius R=400), double‑sided sealed, for heavy linear motion systems.

Structure: Guide roller + tapered roller bearing
Type:RKU: concentric (fixed center)    RKUR: eccentric (adjustable center)
Rolling way: convex profile, side radius R=400
Seal: double‑sided rubber seal, dust‑proof & water‑resistant
Material: high‑carbon chromium bearing steel, hardened & ground
Load capacity (reference): RKU75: dynamic 69 kN RKU95: dynamic 134 kN RKU115: dynamic 190 kN
Operating temperature: −20°C to +80°C
Shaft speed: up to 4 m/s (heavy‑duty working condition)
Operating Environment: Suitable for heavy loads, high rigidity, harsh environments:
Heavy automation lines, automated storage & retrieval systems (AS/RS),stackers, lifting equipment, logistic conveyors
Machine tools, metallurgical machinery, foundry equipment
Long working life, low maintenance, strong shock resistance
Our Service
Xuanmao own brand with stable quality & competitive price
OEM / ODM manufacturing accept drawings, samples, custom branding
Interchangeable with NADELLA dimensions, ready for assembly
Full sizes in stock: RKU75, RKUR75, RKU95, RKUR95, RKU115, RKUR115