6905ZZ

6900 SeriesZZ

GDQV 6905ZZ deep groove ball bearing, 25×42×9mm, double-sided metal shield (non-contact type), low friction, suitable for high-speed applications. Rated dynamic load 7kN, rated static load 4.55kN. Typical applications: Automotive.

Technical Drawing

D = 42d = 25B = 9All dimensions in mmDimension reference diagram — not a manufacturing drawing尺寸参考图 — 非制造图纸

Technical Specifications

Bore (d)25 mm
Outer Diameter (D)42 mm
Width (B)9 mm
Dynamic Load (C)7 kN
Static Load (C₀)4.55 kN
Limiting Speed (Grease)16,000 rpm
Limiting Speed (Oil)Please contact sales for confirmationPending confirmation
Internal ClearanceC0
MaterialGCr15
Precision GradeP0

Seal Design Notes

Seal construction
Metal shields on both sides. No rubber sealing-ring material is specified.
What it shields
The shields help limit dust entry and grease escape on both sides. They should not be treated as a specified water barrier.
Effect on speed
The listed grease-lubricated limiting speed is 100% of the open version for the same base model. Select against the actual speed in the specification table.
Lubrication
The factory table specifies grease lubrication and provides no oil-lubricated limiting speed. Confirm suitability with GDQV before specifying an oil-lubricated arrangement.
When to choose it
Consider ZZ for a grease-lubricated assembly needing shields on both sides. Confirm grease life and maintenance requirements for the operating conditions.

Key Features

  • Standard dimensions: 25mm bore × 42mm OD × 9mm width
  • Double metal shield for contamination protection
  • Dynamic load rating: 7kN | Static load rating: 4.55kN
  • Grease speed limit: 16,000 r/min | Oil speed limit: - r/min
  • Bearing steel, internal clearance and precision grade pending

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