Drawing of 2689/2631: ⌀28.575 × ⌀66.421 × 23.812 mm⌀66.421⌀28.575T 23.812C 19.05α2689/2631
Fig. 1: 2689/2631, 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 2689/2631

Combined load at an angle (tapered, high), axial on one sideTapered roller

Bearing Z&S 2689/2631

Price on request
Available to order

Specifications

Manufacturer number
ISO designation
d
28.575 mm
Bore diameter dBearing bore = shaft diameter. Source: two supplier sources
D
66.421 mm
Outside diameter DOutside diameter = housing bore. Source: two supplier sources
B
25.433 mm
Width BRing width. Source: supplier data
T
23.812 mm
Total width TOverall width of an assembled tapered roller bearing. Source: two supplier sources
Cup width C
19.05 mm
Cup width CWidth of the outer ring of a tapered roller bearing. Source: supplier data
C
71 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
81.7 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
Limiting speed
8,200 rpm
Limiting speedMechanical limit; depends on the seal (SKF 6200: 36,000 open, 17,000 with 2RSH). Source: supplier data
m
0.41 kg
MassWeight of the product. Source: supplier data
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Details

what this bearing is, questions

About the bearing

d×D×Tsize 28.575 × 66.421 × 23.812mm
Cdynamic 71kN
C0static 81.7kN
mweight 0.41kg

Tapered roller bearing 2689.

C, C₀, m and limiting speed 8,200 rpm: Z&S data. Another brand publishes its own figures, so compare them against that brand’s catalogue.

Frequently asked questions

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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