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SKFNN3026KMSPW33Super-Precision Double-Row Cylindrical Roller Bearing – 130 mm ID, 200 mm OD, 52 mm Width, 1:12 Tapered Bore, C1 Clearance, W33

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1 in stock

Double-row super-precision cylindrical roller bearing, 130 x 200 x 52 mm, 1:12 tapered bore, machined brass cage, W33 lube groove, P5 class.

List Price

$534.68

1 in stock

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Specifications

Key Specifications

MFR / BrandSKF
MPNNN3026KMSPW33
ModelNN 3026 K M SP W33
Bearing TypeCylindrical Roller Bearing, Open
ID130 mm
OD200 mm
Width52 mm

Technical Specifications

MaterialBearing Steel
SeriesNN30
LubricantOil/Grease
Base NumberNN 3026
Industry TermsDouble row cylindrical roller bearing; machine tool spindle bearing; super precision cylindrical roller; tapered bore spindle bearing
Bore Shaft Size130 mm (5.118 in), tapered 1:12
Mpn VariantsNN3026KMSPW33; NN 3026 KM/SPW33; NN-3026-K-M-SP-W33; NN 3026 K M SP W33; NN3026
Rolling ElementsCylindrical Rollers
Number Of Rows2
Bore TypeTapered 1:12
Harmonization Code8482.50.00.00
Part NumberNN 3026 KM/SPW33

Cross-References

Cross Reference 1FAG NN3026-AS-K-M-SP
Cross Reference 2NSK NN3026MBKRE4
Cross Reference 3Timken NN3026K – check precision class and W33
Cross Reference 4Koyo NN3026K – check precision class and W33
Cross Reference 5SKF NN 3026 KTN9/SPW33 – polyamide cage vs brass
Seller Part Number: B-BR5#TIKXO9

Product Description

What this part is

SKF NN 3026 KM/SPW33 double-row super-precision cylindrical roller bearing. Bore: 130 mm, tapered 1:12. Outside diameter: 200 mm. Width: 52 mm. Series: NN 30. Two rows of cylindrical rollers, machined brass cage, open, with a W33 lubrication groove and three feed holes in the outer ring.

Decoding the designation

NN: double-row cylindrical roller, ribs on the inner ring, plain separable outer ring. 3026: series NN 30, bore code 26, 130 mm bore. K: 1:12 tapered bore. M: machined brass cage. SP: super-precision tolerance class, P5 running accuracy. W33: lubrication groove plus three radial feed holes in the outer ring.

What these specs mean in practice

A double-row cylindrical roller bearing carries high radial load in a short axial space and gives a machine-tool spindle its radial stiffness. The 1:12 tapered bore sets radial clearance by how far the inner ring is driven up the taper, so clearance is adjustable at assembly. Internal Clearance: C1, a reduced clearance for close spindle location. Limiting speed: 5,300 rpm. Operating temperature range: -30 to +150 °C.

Quantity and configuration

One bearing, 1 Pc. Inner ring, roller and cage assemblies, and separable outer ring.

Fitting notes

The 1:12 tapered bore mounts directly on a tapered spindle journal. Drive-up on the taper sets the running clearance, and the W33 groove aligns with the oil or grease feed in the housing. Rollers are guided by the ribs on the inner ring, so the outer ring lifts off as a plain sleeve.

Interchange guidance

FAG NN3026-AS-K-M-SP, NSK NN3026MBKRE4, Timken NN3026K and Koyo NN3026K are the same 130 x 200 x 52 mm double-row tapered-bore size in the same class. SKF NN 3026 KTN9/SPW33 is a related execution on the same envelope with a glass-fibre polyamide cage and its own load ratings. Searchable forms: NN3026KMSPW33, NN 3026 KM/SPW33, NN-3026-K-M-SP-W33, NN3026.

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