Drawing of 6308: ⌀40 × ⌀90 × 23 mm6308
Fig. 1: 6308, 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 6308

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

Bearing NTE 6308

Price on request
Available to order

Specifications

Manufacturer number
GOST number
d
40 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
90 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
B
23 mm
Width BRing width. Source: supplier data
Seal
open, no protection
Clearance
normal clearance
C
42.3 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
24 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
m
0.63 kg
MassWeight of the product. Source: supplier data
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Equivalents

the same size 40 × 90 × 23 from other brands

82 products
Series illustration (not a photo of this item): 6308
You are viewingNTE 6308

Everything the number specifies matches: series 63, 40 × 90 × 23 mm, open, no protection, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the NTE catalogue.

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Details

what this bearing is, questions

About the bearing

D 90d 40B 23
d×D×Bsize 40 × 90 × 23mm
Cdynamic 42.3kN
C0static 24kN
mweight 0.63kg

Deep groove ball bearing 6308. Under GOST the same bearing is designated 308.

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

Frequently asked questions

What is 308?

It is the same bearing under GOST 3189-89: 308 corresponds to the ISO base 6308. Size 40 × 90 × 23 mm, a full equivalent of 6308.

Will 6308 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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