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Uxcell R188ZZ Groove Bearings Shielded Review

3

·

Very good

Revainrating 4 out of 5  
Rating 
4.0
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Description of Uxcell R188ZZ Groove Bearings Shielded

R188ZZ (I.D.=1/4 inch, O.D.=1/2 inch, Thickness=3/16 inch). R188-2Z bearings are shielded on BOTH SIDES to keep lubricant in. Made from Chromium Steel (GCr15), durability and resistance to under heavy loads. ABEC Tolerance 1 (P0), Z2 Noise Level for most general use. Static load rating of 80 newtons and dynamic load rating of 207 newtons.

Reviews

Global ratings 3
  • 5
    2
  • 4
    0
  • 3
    0
  • 2
    1
  • 1
    0

Type of review

Revainrating 5 out of 5

Good stock. the best of deep groove ball bearings

Obviously my inability to read and understand dimensions. they are smaller than I had planned. but will probably use it elsewhere.

Pros
  • Static load rating of 80 Newtons and dynamic load rating of 207 Newtons
Cons
  • So far so good

Revainrating 2 out of 5

ID does not match specification. fits ball bearing

Probably 0.250" ID bearing (ID), but size 0.246 - .247"Shaft 1/4" does not fit. The outside diameter is very good and corresponds to the specification.

Pros
  • R188ZZ (ID = 1/4", OD = 1/2", thickness = 3/16")
Cons
  • expensive

Revainrating 5 out of 5

Used to replace cheap nylon rollers in a window

Used these bearings to replace cheap nylon rollers fitted to my expensive very heavy sash windows in our living room were. $10 fixed both windows with 6 replacement bearings.

Pros
  • ABEC 1 (P0) noise level Z2 for most general purpose applications
Cons
  • old