W 638/1.5-2Z

Stainless steel deep groove ball bearings with embedded seals

Stainless steel single row deep groove ball bearings with seals or dust caps on both sides are more resistant to chemicals and corrosion. Due to their wide use and versatility, deep groove ball bearings have very low friction and are optimised to reduce noise and vibration, thereby increasing rotational speeds. Capable of withstanding radial loads and bi-directional axial loads, they are easy to mount and require much less maintenance than other bearing types. Embedded seals dramatically extend bearing life by preventing grease leakage and the ingress of contaminants.

  • Improved resistance to chemicals and corrosion
  • Embedded seals extend bearing life
  • Typical advantages of single row deep groove ball bearings

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Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter1.5mm
Outer Diameter4.0mm
Width2.0mm

Performance

Basic rated dynamic load0.062kN
Basic rated static load0.016kN
Reference speed220000.0r/min
Limiting speed110000.0r/min

Attributes

Oil filling groove Without
Number of columns 1
Locating feature, bearing outer ring without
Hole type Cylindrical bore
Cage Steel plate
Matching Configuration None
Radial clearance CN
Material, Bearing Stainless Steel
Coated without
Sealing With dust cap on both sides
Seal type Non-Contact
Lubricant Grease
Relubrication function Without

Logistics

Net weight1.0E-4kg
eClass Code 23-05-08-01
UNSPSC Code 31171504

Technical Parameters

Technical Parameters

sizes

d

1.5mm Hole diameter
D4.0mm Outer diameter
B2.0mm Width
d1 ≈2.15mm Retaining edge diameter
d2 ≈2.15mm Diameter of groove
D2 ≈3.5mm Groove diameter
r1,2 min.0.05mm Chamfer size

Shoulder size

da

min.1.9mm Shaft shoulder diameter
da max.2.1mm Shaft shoulder diameter
Da max.3.6mm Bearing housing shoulder diameter
ra max.0.05mm Chamfering radius of shaft or housing

Data calculation

Basic dynamic load rating

C0.062kN
Basic rated static loadC00.016kN
Fatigue Load LimitPu0.001kN
Reference speed220000.0r/min
Limit speed110000.0r/min
Minimum load factorkr0.02
Calculation factorf06.4

Tolerance class

Dimensional Tolerance

Normal
Radial runout Normal

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