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Drawing of 51103 5: ⌀17 × ⌀30 × 9 mm⌀30⌀17951103 5
Fig. 1: 51103 5, 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 51103 5

Load: no radial load; axial medium, on one sideThrust ball

Bearing NSK 51103 5

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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
1 exact, 8 approximate
d
17 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
30 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
H
9 mm
Height HMounting height: the distance between the seating faces of the washers of an assembled thrust bearing (ISO 104). Source: supplier data
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Equivalents

the same size 17 × 30 × 9 from other brands

11 products
Cross-section drawing to size: Thrust ball, 17 × 30 × 9 mm
You are viewingNSK 51103 5

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

what this bearing is, questions

About the bearing

d×D×Hsize 17 × 30 × 9mm

Thrust ball bearing 51103. Under GOST the same bearing is designated 8103.

Frequently asked questions

What is 8103?

It is the same bearing under GOST 3189-89: 8103 corresponds to the ISO base 51103. Size 17 × 30 × 9 mm, a full equivalent of 51103.

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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