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Drawing of NA 4904 2RS: ⌀20 × ⌀37 × 18 mm⌀37⌀2018NA 4904 2RS2RS
Fig. 1: NA 4904 2RS, 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 2RS

Load: radial high; no axial loadNeedle

Bearing CT NA 4904 2RS

€1.89per piece
In stock: 100 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
18 mm
Width BRing width. Source: two supplier sources
Seal
2RSrubber, both sides
Clearance
normal clearance
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Equivalents

the same size 20 × 37 × 18 from other brands

10 products
Cross-section drawing to size: Needle, 20 × 37 × 18 mm
You are viewingCT NA 4904 2RS
€1.89baseline 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 (€1.89).

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Details

what this bearing is, questions

About the bearing

d×D×Bsize 20 × 37 × 18mm

Needle bearing NA 4904 2RS, design 2RS: contact seals on both sides.

Frequently asked questions

How does 2RS differ from ZZ?

2RS has rubber seals that touch the inner ring and keep out dust and water better, which is the usual choice for field machinery. ZZ has metal shields that do not touch, allow higher speeds, and protect against dirt less well.

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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