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Drawing of 121 (6021): ⌀105 × ⌀160 × 26 mm121 (6021)
Fig. 1: 121 (6021), end view and section; rolling element geometry per the NSK catalogue; GOST number = ISO 6021, dimensions from the GOST↔ISO table CX p.762. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 121

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

Bearing CT 121

Supplier’s set and note: (6021)

Price on request
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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
2 exact, 4 approximate
d
105 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
160 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
B
26 mm
Width BRing width. Source: supplier data
Seal
open, no protection
Clearance
normal clearance
01

Equivalents

the same size 105 × 160 × 26 from other brands

9 products
Drawing: 121 (6021)
You are viewingCT 121

Everything the number specifies matches: series 1, 105 × 160 × 26 mm, open, no protection, normal clearance, ordinary steel, design without special letters. The codes in the number are read against the CT catalogue.
02

Details

what this bearing is, questions

About the bearing

D 160d 105B 26
d×D×Bsize 105 × 160 × 26mm

Deep groove ball bearing 6021. Under GOST the same bearing is designated 121.

Frequently asked questions

What is 121?

It is the same bearing under GOST 3189-89: 121 corresponds to the ISO base 6021. Size 105 × 160 × 26 mm, a full equivalent of 6021.

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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