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Nk Nki Needle Roller Bearings Nki5/12tn Nki5/16tn Nki6/12tn Nki6/16tn Nki7/12tn Nki7/16tn Nkj5/12 Nkj5/16 Nkj6/12 Nkj6/16 Nkj7/12 Nkj7/16 for Automotive Engine1
Cylindrical Roller Bearing, Needle Roller Bearings, Nk Nki Needle Roller Bearings
Shandong UJK Bearing Co., Ltd.
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Product Description UJK NK & NKI Series Machined Ring Needle Roller BearingsThe UJK NK and NKI Series represent high-precision, heavy-duty needle roller bearings designed for applications requiring exceptional radial load capacity, rigidity, and durability within a compact cross-section. Featuring precision-machined rings and a full complement of needle rollers guided by a robust cage, these bearings excel in demanding environments where high loads and precise shaft guidance are critical.Key Features & Benefits:Machined Ring Construction: Utilizes hardened and ground outer rings (and inner rings in NKI variants) for superior dimensional accuracy, load distribution, and rigidity compared to drawn cup designs.High Radial Load Capacity: Engineered to withstand extremely high radial loads relative to their size, making them ideal for space-constrained, high-load applications.Caged Roller Design: The integral cage accurately spaces the needle rollers, prevents skewing, reduces friction, and enables higher operational speeds compared to full-complement designs.Two Versatile Configurations:NK Series: Bearings consist of an outer ring with cage and rollers. Requires a hardened and ground shaft as the inner raceway. Offers maximum compactness.NKI Series: Bearings include an outer ring, cage and rollers, plus a separable inner ring. Simplifies shaft design (no hardening/grinding required) and allows for easy mounting/dismounting.Enhanced Rigidity & Precision: The machined construction provides superior rigidity and running accuracy under load, crucial for precise mechanisms.Robust Performance: Designed for durability in challenging conditions, including shock loads and contaminated environments (especially with seals/shields added).Versatile Applications: Widely used in gearboxes, transmissions, pumps, compressors, construction machinery, agricultural equipment, and industrial driveshafts where high radial loads and compact design converge.Core Distinction:NK Series: Requires hardened/ground shaft.NKI Series: Includes separable inner ring.The UJK NK and NKI Series needle roller bearings deliver unmatched load capacity and rigidity in a minimal radial space, providing reliable performance solutions for the most exacting mechanical power transmission challenges.
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