Prices are in euros. The final price and delivery cost are confirmed in the quote.
Drawing of NA 4904: ⌀20 × ⌀37 × 17 mm⌀37⌀2017NA 4904
Fig. 1: NA 4904, 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 NA 4904

Load: radial high; no axial loadNeedle

Bearing CT NA 4904

€1.68per piece
In stock: 40 pcs

Specifications

Manufacturer number
d
20 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
37 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
B
17 mm
Width BRing width. Source: two supplier sources
Seal
open, no protection
Clearance
normal clearance
C
21.6 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
28 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.075 kg
MassWeight of the product. Source: supplier data
01

Equivalents

the same size 20 × 37 × 17 from other brands

10 products
Cross-section drawing to size: Needle, 20 × 37 × 17 mm
You are viewingCT NA 4904
€1.68baseline for the price comparison

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

Under the price: the difference from the price of this bearing (€1.68).

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Details

what this bearing is, questions

About the bearing

d×D×Bsize 20 × 37 × 17mm
Cdynamic 21.6kN
C0static 28kN
mweight 0.075kg

Needle bearing NA 4904.

C, C₀, m: 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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