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Drawing of 27308 (31308): ⌀40 × ⌀90 × 25.25 mm⌀90⌀40T 25.25C 20α27308 (31308)
Fig. 1: 27308 (31308), end view and section; internal parts simplified per ISO 8826-1; GOST number = ISO 31308, dimensions from the GOST↔ISO table CX p.771. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 27308

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

Bearing CT 27308

Supplier’s set and note: (31308)

Price on request
Available to order
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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
4 exact, 14 approximate
d
40 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
90 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
T
25.25 mm
Total width TOverall width of an assembled tapered roller bearing. Source: supplier data
Cup width C
20 mm
Cup width CWidth of the outer ring of a tapered roller bearing. Source: supplier data
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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 viewingCT 27308

Everything the number specifies matches: series 273, 40 × 90 mm, ordinary steel, design without special letters. The codes in the number are read against the CT catalogue.

  • Cross-section drawing to size: Tapered roller, 40 × 90 × T 25.25 mm27308 (31308)This bearingCT40 × 90 × ?available to orderon requestyou are here
  • Cross-section drawing to size: Tapered roller, 40 × 90 × T 25.25 mm31308CT40 × 90 × ?22 pcs€3.61Request a quote
  • Cross-section drawing to size: Tapered roller, 40 × 90 × T 25.25 mm31308NTE40 × 90 × ?194 pcs€4.92Request a quote
  • Cross-section drawing to size: Tapered roller, 40 × 90 × T 25.25 mm31308no brand40 × 90 × ?available to orderon requestRequest a quote
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Details

what this bearing is, questions

About the bearing

d×D×Tsize 40 × 90 × 25.25mm

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

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.

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