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Drawing of NU309 MC3NA: ⌀45 × ⌀100 × 25 mm⌀100⌀4525NU309 MC3NA
Fig. 1: NU309 MC3NA, 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 NU309 MC3NA

Load: radial high; no axial loadCylindrical roller NU

Bearing CT NU309 MC3NA

€6.64per piece
In stock: 5 pcs
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Specifications

Manufacturer number
Equivalents
1 exact, 41 approximate
d
45 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
100 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
B
25 mm
Width BRing width. Source: two supplier sources
Seal
open, no protection
Clearance
NA
C
112 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
100 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
01

Equivalents

the same size 45 × 100 × 25 from other brands

43 products
Cross-section drawing to size: Cylindrical roller NU, 45 × 100 × 25 mm
You are viewingCT NU309 MC3NA
€6.64baseline for the price comparison

Same size, different design: the difference is written in the row.

  • Cross-section drawing to size: Cylindrical roller NU, 45 × 100 × 25 mmNU 309normal clearanceCT45 × 100 × 2529 pcs€4.39−€2.25Request a quote
  • Cross-section drawing to size: Cylindrical roller NJ, 45 × 100 × 25 mmNJ 309normal clearanceCT45 × 100 × 25available to order€3.23−€3.41Request a quote
  • Photo: NUP 309NUP 309normal clearanceZ&S45 × 100 × 25available to order€12.92+€6.28Request a quote
  • Photo: NJ 309 ENJ 309 Enormal clearanceZ&S45 × 100 × 25available to order€13.68+€7.04Request a quote
  • Photo: NUP 309 NNUP 309 Nnormal clearanceZ&S45 × 100 × 25available to order€16.96+€10.32Request a quote
  • Photo: NU 309 NNU 309 Nnormal clearanceUTL45 × 100 × 25available to order€51.91+€45.27Request a quote
  • Photo: NUP 309NUP 309normal clearanceFAG45 × 100 × 25available to order€80.62+€73.98Request a quote
  • Photo: NUP 309 MANUP 309 MAnormal clearanceNEU45 × 100 × 25available to order€88.42+€81.78Request a quote
  • Cross-section drawing to size: Cylindrical roller, 45 × 100 × 25 mmNF 309normal clearanceCT45 × 100 × 25available to orderon requestRequest a quote
  • Cross-section drawing to size: Cylindrical roller N, 45 × 100 × 25 mmN 309normal clearanceCT45 × 100 × 25available to orderon requestRequest a quote

Under the price: the difference from the price of this bearing (€6.64).
02

Details

what this bearing is, questions

About the bearing

d×D×Bsize 45 × 100 × 25mm
Cdynamic 112kN
C0static 100kN

Cylindrical roller NU bearing NU309 MC3NA.

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

Frequently asked questions

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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