NK37/20-D-XL

Specifications

Availability: 100 PCS

Brand: HSN/ FAG/ OEM

Bearing Number: NK37/20-D-XL

Category: Needle Roller Bearings

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Weight and Dimensions

Bore Diameter (Fw): 37 mm

Outside Diameter (D): 47 mm

Width (B): 20 mm

Weight: 83 g

Data from Schaeffler (medias)

Basic Dynamic Load Rating, Radial C_r: 34000 N

Basic Static Load Rating, Radial (C_0r): 56000 N

Fatigue Load Limit, Radial (C_ur): 9900 N

Limiting Speed (n_G): 12300 r/min

Reference Speed (n_G): 6800 r/min

Product Properties

Precision: P0, P6, P5

Hardness: HRC58-62

Ring Material: GCr15, GCr15SiMn, 100CrMnSi6-4, etc.

Cage Material: Brass, Steel

Certificate: ISO9001:2015

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Downloads & Links

FAG Needle Roller Bearings Guide

Product Description

The NK37/20-D-XL FAG machined needle roller bearing consists of a machined outer ring, needle rollers, and an optimized cage, without an inner ring. The needle rollers run directly on a suitably hardened and ground shaft raceway, helping reduce radial installation space. The D design uses an optimized cage geometry that accommodates more and longer needle rollers, increasing performance density and radial load capacity. In addition, X-life improves load ratings and service life while reducing friction and operating temperature, supporting more energy-efficient operation.

The NK37/20-D-XL bearing is suitable for agricultural machinery, fluid technology and pneumatics, printing machinery, textile machinery, food processing and packaging, and industrial gearboxes. Its combination of high radial load capacity, compact dimensions, reduced friction, and increased power density makes it suitable for space-limited mechanical systems requiring efficient and reliable radial support.