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Drawing of NF308: ⌀40 × ⌀90 × 23 mm⌀90⌀4023NF308
Fig. 1: NF308, 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 NF308

Load: radial high; no axial loadCylindrical roller

Bearing CT NF308

Price on request
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Specifications

Manufacturer number
Equivalents
3 exact, 34 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
B
23 mm
Width BRing width. Source: supplier data
Seal
open, no protection
Clearance
normal clearance
C
93 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
78 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.68 kg
MassWeight of the product. Source: supplier data
01

Equivalents

the same size 40 × 90 × 23 from other brands

40 products
Cross-section drawing to size: Cylindrical roller, 40 × 90 × 23 mm
You are viewingCT NF308

Size and design match across the brand catalogues. The codes in the number are read against the CT catalogue.

  • Cross-section drawing to size: Cylindrical roller, 40 × 90 × 23 mmNF308This bearingCT40 × 90 × 23available to orderon requestyou are here
  • Cross-section drawing to size: Cylindrical roller, 40 × 90 × 23 mmNF 308 EKG40 × 90 × 23available to orderon requestRequest a quote
  • Cross-section drawing to size: Cylindrical roller, 40 × 90 × 23 mmNF 308Koyo40 × 90 × 23available to orderon requestRequest a quote
02

Details

what this bearing is, questions

About the bearing

d×D×Bsize 40 × 90 × 23mm
Cdynamic 93kN
C0static 78kN
mweight 0.68kg

Cylindrical roller bearing NF308.

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

Frequently asked questions

Will 308 C3 fit instead?

Same size, clearance greater than normal. C3 is used where the bearing runs hot or sits on the shaft with an interference fit. If the old bearing is not marked C3, take this one.

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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