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Drawing of 7311 B: ⌀55 × ⌀120 × 29 mm⌀120⌀55297311 B
Fig. 1: 7311 B, 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 7311 B

Combined load at an angle (angular contact), axial on one sideAngular contact ball

Bearing KG 7311 B

Price on request
Available to order
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Specifications

Manufacturer number
GOST number
Equivalents
1 exact, 4 approximate
d
55 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
120 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
B
29 mm
Width BRing width. Source: supplier data
Seal
open, no protection
01

Equivalents

the same size 55 × 120 × 29 from other brands

7 products
Series illustration (not a photo of this item): 7311 B
You are viewingKG 7311 B

Same size, different design: the difference is written in the row.

  • Cross-section drawing to size: Angular contact ball, 55 × 120 × 29 mm7311ACMAC, MCT55 × 120 × 29available to orderon requestRequest a quote
  • Cross-section drawing to size: Angular contact ball, 55 × 120 × 29 mm7311BEAT85 55, B, EA, T85NSK55 × 120 × 29available to orderon requestRequest a quote
  • Cross-section drawing to size: Angular contact ball, 55 × 120 × 29 mm7311BEAT85SUCNB 55, B, EA, SU, T85NSK55 × 120 × 29available to orderon requestRequest a quote
  • Cross-section drawing to size: Angular contact ball, 55 × 120 × 29 mm7311 BEGAPBE, GA, PSKF55 × 120 × 29available to orderon requestRequest a quote
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Details

what this bearing is, questions

About the bearing

D 120d 55B 29
d×D×Bsize 55 × 120 × 29mm

Angular contact ball bearing 7311 B. Under GOST the same bearing is designated 66311.

Frequently asked questions

What is 66311?

It is the same bearing under GOST 3189-89: 66311 corresponds to the ISO base 7311 B. Size 55 × 120 × 29 mm, a full equivalent of 7311 B.

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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