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Simplified drawing of the bearing per ISO 8826-1, dimensions of 6308 ZR: ⌀40 × ⌀90 × 23 mm⌀90⌀40236308 ZRZR
Fig. 1: 6308 ZR, simplified drawing per ISO 8826-1. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 6308 ZR

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

Bearing NTE 6308 ZR

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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
3 exact, 78 approximate
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
ZRshield on one side
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
01

Equivalents

the same size 40 × 90 × 23 from other brands

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

Everything the number specifies matches: series 63, 40 × 90 × 23 mm, shield on one side, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the NTE catalogue.

  • Series illustration (not a photo of this item): 6308 ZR6308 ZRThis bearingNTE40 × 90 × 23available to orderon requestyou are here
  • Series illustration (not a photo of this item): 6308 Z6308 ZCT40 × 90 × 23available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): 6308 ZN6308 ZNCT40 × 90 × 23available to orderon requestRequest a quote
02

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-Z, design ZR: shield on one side. Under GOST the same bearing is designated 60308.

C, C₀, m: NTE 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.

What is 60308?

It is the same bearing under GOST 3189-89: 6 — shield on one side, 0308 corresponds to the ISO base 6308. Size 40 × 90 × 23 mm, a full equivalent of 6308-Z.

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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