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Drawing of 31308: ⌀40 × ⌀90 × 25.25 mm⌀90⌀40T 25.25C 20α31308
Fig. 1: 31308, end view and section; internal parts simplified per ISO 8826-1. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 31308

Combined load at an angle (tapered, high), axial on one sideTapered roller

Bearing NTE 31308

€4.92per piece
In stock: 194 pcs

Specifications

Manufacturer number
GOST number
d
40 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
90 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
T
25.25 mm
Total width TOverall width of an assembled tapered roller bearing. Source: two supplier sources
Cup width C
20 mm
Cup width CWidth of the outer ring of a tapered roller bearing. Source: supplier data
C
85 kN
Basic dynamic load rating CLoad for one million revolutions at 90 % reliability; the L10 life is calculated from it as (C/P)^p. ISO method, manufacturer’s figure: do not carry it over to another brand. Source: supplier data
C0
81.5 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.72 kg
MassWeight of the product. Source: supplier data
01

Equivalents

the same size 40 × 90 × 25.25 from other brands

21 products
Cross-section drawing to size: Tapered roller, 40 × 90 × T 25.25 mm
You are viewingNTE 31308
€4.92baseline for the price comparison

Everything the number specifies matches: series 313, 40 × 90 mm, ordinary steel, design without special letters. The codes in the number are read against the NTE catalogue.

  • Cross-section drawing to size: Tapered roller, 40 × 90 × T 25.25 mm31308This bearingNTE40 × 90 × ?194 pcs€4.92you are here
  • Cross-section drawing to size: Tapered roller, 40 × 90 × T 25.25 mm31308CT40 × 90 × ?22 pcs€3.61−€1.31Request a quote
  • Cross-section drawing to size: Tapered roller, 40 × 90 × T 25.25 mm31308no brand40 × 90 × ?available to orderon requestRequest a quote
  • Cross-section drawing to size: Tapered roller, 40 × 90 × T 25.25 mm27308 (31308)CT40 × 90 × ?available to orderon requestRequest a quote

Under the price: the difference from the price of this bearing (€4.92).

02

Details

what this bearing is, questions

About the bearing

d×D×Tsize 40 × 90 × 25.25mm
Cdynamic 85kN
C0static 81.5kN
mweight 0.72kg

Tapered roller bearing 31308. Under GOST the same bearing is designated 27308.

C, C₀, m: NTE data. Another brand publishes its own figures, so compare them against that brand’s catalogue.

Frequently asked questions

What is 27308?

It is the same bearing under GOST 3189-89: 27308 corresponds to the ISO base 31308. Size 40 × 90 × 25.25 mm, a full equivalent of 31308.

Can I fit another brand instead of this bearing?

Without checking, only an exact equivalent: the size, seal, clearance and design match according to the brand’s catalogue. Positions with the same geometry differ in seal, clearance or design, and each one says so in the equivalents block. Load ratings differ between manufacturers, so for a heavily loaded unit compare C.

How do I get a price and a lead time?

Press “Request a quote” and send the part number and quantity. We reply with the price, availability and delivery terms for your country.

03

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