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NSKSpherical Roller Bearing – 1:12 Tapered Bore, 170 mm ID, 260 mm OD, 67 mm Width, Open, C4 Internal Clearance, W33-Type Lubrication Groove.

Condition: New

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1 in stock

Double-row spherical roller bearing, 170 x 260 x 67 mm, 1:12 tapered bore for an adapter sleeve. Open, pressed steel cage, C4 clearance. Cr 795 kN.

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$392.56

1 in stock

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Specifications

Key Specifications

MFR / BrandNSK
GTIN029176523793
Model23034 CD K E4 C4
Bearing TypeSpherical Roller Bearing, Open
ID170 mm (6.6929 in), tapered 1:12
OD260 mm (10.2362 in)
Width67 mm (2.6378 in)

Technical Specifications

MaterialBearing Steel
Series23000
LubricantOil/Grease
Base Number23034
Industry TermsDouble row spherical roller bearing, self-aligning roller bearing, tapered bore adapter sleeve mount, W33 lubrication groove
Bore Shaft Size170 mm (6.6929 in), tapered 1:12
Mpn Variants23034CDKE4C4, 23034 CD K E4 C4, 23034CDK E4C4, 23034CDKE4, 23034K, 23034
Compatible With ReplacesH3034 adapter sleeve, AH3034 withdrawal sleeve
Rolling ElementsSpherical Roller
Number Of Rows2
Bore TypeTapered, 1:12
Snap Ring IncludedWithout Snap Ring
Harmonization Code8482.30.00
Part Number23034CDKE4C4

Cross-References

Cross Reference 1SKF 23034 CCK/C4W33
Cross Reference 2FAG 23034-E1-K-C4
Cross Reference 3NSK 23034CDE4C4 – straight bore, not tapered
Seller Part Number: B-BG5#N0XSTA

Product Description

What this part is

NSK 23034CDKE4C4 double-row spherical roller bearing, 170 mm bore × 260 mm outside diameter × 67 mm width. Series: 23000. Bore Type: tapered, 1:12. Internal Clearance: C4. Open, with a lubrication groove and feed holes in the outer ring.

Decoding the designation

Base Number: 23034. CD: pressed steel cage with a floating guide ring. K: tapered bore, taper 1:12. E4: lubrication groove and three oil holes in the outer ring, the NSK equivalent of a W33 outer ring. C4: internal clearance, greater than C3. The number is also written 23034 CD K E4 C4, 23034CDK E4C4 and 23034K.

What these specs mean in practice

A double-row spherical roller bearing carries very high radial load, takes thrust in both directions, and accommodates shaft misalignment relative to the housing. Basic Dynamic Load Rating: 795 kN. Basic Static Load Rating: 1,090 kN. Limiting Speed: 1,200 rpm on grease, 1,600 rpm in an oil bath. Mass: 13 kg. C4 clearance leaves more room for thermal growth and for the interference taken up when a tapered bore is driven onto its seat. Calculation factors: e 0.23, Y2 4.3, Y3 2.9, Y0 2.8.

Bore form and mounting hardware

The 1:12 tapered bore mounts on an adapter sleeve. The matching NSK parts are the H3034 adapter sleeve and the AH3034 withdrawal sleeve, each a separate item. Driving the bearing further up the taper reduces the internal clearance, which is how the running clearance is set on a tapered-bore mounting.

Fitting notes

Diameter of Shaft Abutment: 182 to 191 mm. Diameter of Housing Abutment: 233 to 248 mm. The outer-ring groove and holes align with a housing lubrication port for relubrication in service.

Interchange guidance

SKF 23034 CCK/C4W33 and FAG 23034-E1-K-C4 are tapered-bore 23034 bearings in C4 clearance and the same 170 x 260 x 67 mm size. A 23034CDE4C4 has a straight bore, not a tapered one.

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