SKF 31330X Tapered roller bearing
SKF

SKF 31330X Tapered roller bearing

Part number31330XItem numberSKF-31330XHS code8482.20
ISO 15 / ISO 492 / DIN 623
MaterialBearing steel — 100Cr6 (through-hardened) or SNR-nitrided; cage as declared by suffix
Bearings & Power Transmission
Tapered Roller Bearings
MOQ:1

Pricing

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Product Description

SKF 31330X tapered roller bearing. Single-row tapered roller bearing designed to take combined heavy radial and one-direction axial load. Rollers, inner ring raceway (cone) and outer ring raceway (cup) are ground to converge at a common apex on the bearing axis. Two bearings are always mounted in opposition so the pair carries axial load in both directions and can be preloaded to remove all internal clearance. Metric dimensions per ISO 355 / ISO 492 Class Normal. Bore diameter d = 150 mm per ISO 15.

Technical Specifications

Type
Tapered roller bearing
Designation
SKF 31330X
Standard
ISO 15 / DIN 623 dimension plan; ISO 492 Class Normal precision
HS code
8482.20
Bore diameter
150 mm
Outside diameter
320 mm
Width, total
82 mm
Width, inner ring
75 mm
Width, outer ring
50 mm
Contact angle
28.8 °
Basic dynamic load rating
832 kN
Basic static load rating
1020 kN
Reference speed
1400 r/min
Limiting speed
2000 r/min
Bearing part
Complete bearing
Number of rows
1
Locating feature, bearing outer ring
Without
Bore type
Cylindrical
Cage
Sheet metal
Arrangement of contact angle (double-row bearing)
Not applicable
Matched arrangement
No
Coating
Without
Sealing
Without
Lubricant
None
Relubrication feature
Without
Unit system
Metric
Candidate for remanufacturing
Yes
Indicative carbon footprint for new product
101 kg CO2e
Indicative carbon footprint for remanufactured product
33.5 kg CO2e
Product net weight
27.2 kg
eClass code
23-05-09-10
UNSPSC code
31171516

Standards & Compliance

Standard
ISO 15 / ISO 492 / DIN 623
Material
Bearing steel — 100Cr6 (through-hardened) or SNR-nitrided; cage as declared by suffix
Temperature Range
-30 to +120 °C standard grease
HS Code
8482.20

Cross References

  • Timken 31330
  • NSK 31330
  • NTN 31330
  • FAG 31330
  • Koyo 31330
  • Equivalent: 31330 (Timken)
  • Equivalent: 31330 (NSK)
  • Equivalent: 31330 (NTN)
  • Equivalent: 31330 (FAG)
  • Equivalent: 31330 (Koyo)

Compatibility & Fitment

ISO 15 boundary-plan interchange — the numeric bore-code block is portable across every ISO 15 bearing manufacturer (SKF, Timken, NSK, NTN, FAG, Koyo, NACHI). Confirm suffix compatibility on cage, seal, clearance and precision class before substitution.

Not sure if it fits? Email sales@cballast.com with your equipment serial number or photos — we confirm fit before you order.

Product Documentation

Document preview: SKF 31330X Tapered roller bearing — Specification sheet

Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.

Frequently asked questions

Where can I buy 31330X?
31330X can be ordered from cballast.com as a SKF catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
What is the manufacturer part number for this SKF product?
The manufacturer part number is 31330X.
What is the HS code for 31330X?
The customs tariff (HS) code for 31330X is 8482.20.
Who manufactures 31330X?
31330X is a SKF product in the Bearings & Power Transmission range.
Is a datasheet available for 31330X?
Yes — the 31330X datasheet can be viewed and downloaded on this page.
What is the minimum order quantity for 31330X?
The minimum order quantity is 1.
Is 31330X available?
Yes — 31330X is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).