Total width TOverall width of an assembled tapered roller bearing. Source: two supplier sources
Cup width C
13 mm
Cup width CWidth of the outer ring of a tapered roller bearing. Source: supplier data
C
34.1 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
32.5 kN
Basic static load rating C0Permissible load without rotation and under shock; ISO 76 method, manufacturer’s figure. Source: supplier data
Limiting speed
11,000 rpm
Limiting speedMechanical limit; depends on the seal (SKF 6200: 36,000 open, 17,000 with 2RSH). Source: supplier data
m
0.17 kg
MassWeight of the product. Source: supplier data
01
Equivalents
the same size 20 × 52 × 16.25 from other brands
11 products
You are viewingZ&S 30304 A
€2.48baseline for the price comparison
Everything the number specifies matches: series 303, 20 × 52 mm, special design. The codes in the number are read against the Z&S catalogue.
30304 AThis bearing20 × 52 × ?available to order€2.48you are here
Under the price: the difference from the price of this bearing (€2.48).
02
Details
what this bearing is, questions
About the bearing
d×D×Tsize20 × 52 × 16.25mm
Cdynamic34.1kN
C0static32.5kN
mweight0.17kg
Tapered roller bearing 30304. Under GOST the same bearing is designated 7304.
C, C₀, m and limiting speed 11,000 rpm: Z&S data. Another brand publishes its own figures, so compare them against that brand’s catalogue.
Frequently asked questions
What is 7304?+
It is the same bearing under GOST 3189-89: 7304 corresponds to the ISO base 30304. Size 20 × 52 × 16.25 mm, a full equivalent of 30304.
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.
03
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