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Drawing of NJ 309: ⌀45 × ⌀100 × 25 mm⌀100⌀4525NJ 309
Fig. 1: NJ 309, 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 NJ 309

Load: radial high; axial low, on one sideCylindrical roller NJ

Bearing CT NJ 309

€3.23per piece
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Specifications

Manufacturer number
Equivalents
6 exact, 35 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
normal clearance
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
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Equivalents

the same size 45 × 100 × 25 from other brands

43 products
Cross-section drawing to size: Cylindrical roller NJ, 45 × 100 × 25 mm
You are viewingCT NJ 309
€3.23baseline for the price comparison

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 NJ, 45 × 100 × 25 mmNJ 309This bearingCT45 × 100 × 25available to order€3.23you are here
  • Photo: NJ 309 ENJ 309 EZ&S45 × 100 × 25available to order€13.68+€10.45Request a quote
  • Series illustration (not a photo of this item): NJ 309 ENJ 309 EKG45 × 100 × 25available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): NJ 309 ENJ 309 ENTE45 × 100 × 25available to orderon requestRequest a quote
  • Cross-section drawing to size: Cylindrical roller NJ, 45 × 100 × 25 mmNJ 309 ECJSKF45 × 100 × 25available to orderon requestRequest a quote
  • Cross-section drawing to size: Cylindrical roller NJ, 45 × 100 × 25 mmNJ 309 ECPSKF45 × 100 × 25available to orderon requestRequest a quote

Under the price: the difference from the price of this bearing (€3.23).
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Details

what this bearing is, questions

About the bearing

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

Cylindrical roller NJ bearing NJ 309.

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

Frequently asked questions

Will 309 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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