KG
Drawing of 6902 ZZ: ⌀15 × ⌀28 × 7 mm6902 ZZZZ
Fig. 1: 6902 ZZ, end view and section; rolling element geometry per the NSK catalogue. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 6902 ZZ

Load: radial medium; axial low, on both sidesDeep groove ball

Bearing KG 6902 ZZ

Price on request
Available to order

Specifications

Manufacturer number
ISO designation
d
15 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
28 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
B
7 mm
Width BRing width. Source: supplier data
Seal
ZZshields, both sides
Clearance
normal clearance
C
4.36 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
2.24 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
Limiting speed
34,000 rpm
Limiting speedMechanical limit; depends on the seal (SKF 6200: 36,000 open, 17,000 with 2RSH). Source: supplier data
m
0.016 kg
MassWeight of the product. Source: supplier data
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Equivalents

the same size 15 × 28 × 7 from other brands

24 products
Series illustration (not a photo of this item): 6902 ZZ
You are viewingKG 6902 ZZ

Everything the number specifies matches: series 69, 15 × 28 × 7 mm, metal shields on both sides, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the KG catalogue.

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Details

what this bearing is, questions

About the bearing

D 28d 15B 7
d×D×Bsize 15 × 28 × 7mm
Cdynamic 4.36kN
C0static 2.24kN
mweight 0.016kg

Deep groove ball bearing 6902-ZZ, design ZZ: metal shields on both sides.

C, C₀, m and limiting speed 34,000 rpm: KG data. Another brand publishes its own figures, so compare them against that brand’s catalogue.

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.

Will 6902 ZZ 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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