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Simplified drawing of the bearing per ISO 8826-1, dimensions of 6307NR* 5: ⌀35 × ⌀80 × 21 mm⌀80⌀35216307NR* 5
Fig. 1: 6307NR* 5, simplified drawing per ISO 8826-1. Dimensions in mm

There is no photo of this product: the drawing shows the dimensions of 6307NR* 5

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

Bearing NSK 6307NR* 5

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Specifications

Manufacturer number
ISO designation
GOST number
Equivalents
4 exact, 64 approximate
d
35 mm
Bore diameter dBearing bore = shaft diameter. Source: supplier data
D
80 mm
Outside diameter DOutside diameter = housing bore. Source: supplier data
B
21 mm
Width BRing width. Source: supplier data
Seal
open, no protection
Clearance
normal clearance
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Equivalents

the same size 35 × 80 × 21 from other brands

68 products
Cross-section drawing to size: Deep groove ball, 35 × 80 × 21 mm
You are viewingNSK 6307NR* 5

Everything the number specifies matches: series 63, 35 × 80 × 21 mm, open, no protection, NR, normal clearance, special design. The codes in the number are read against the NSK catalogue.

  • Cross-section drawing to size: Deep groove ball, 35 × 80 × 21 mm6307NR* 5This bearingNSK35 × 80 × 21available to orderon requestyou are here
  • Series illustration (not a photo of this item): 6307 NR6307 NRCT35 × 80 × 21available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): 6307 NR6307 NRKG35 × 80 × 21available to orderon requestRequest a quote
  • Series illustration (not a photo of this item): 6307 NR6307 NRNTE35 × 80 × 21available to orderon requestRequest a quote
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Details

what this bearing is, questions

About the bearing

D 80d 35B 21
d×D×Bsize 35 × 80 × 21mm

Deep groove ball bearing 6307. Under GOST the same bearing is designated 307.

Frequently asked questions

What is 307?

It is the same bearing under GOST 3189-89: 307 corresponds to the ISO base 6307. Size 35 × 80 × 21 mm, a full equivalent of 6307.

Will 6307 C3 fit instead?

Same size, clearance greater than normal. C3 is used where the bearing runs hot or sits on the shaft with an interference fit. If the old bearing is not marked C3, take this one.

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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