6400 SERIES · INDUSTRIAL SUPPLY · DEEP GROOVE
6400 Series Deep Groove Ball Bearing
The 6400 Series deep groove ball bearing belongs to the medium-heavy section of the deep groove family, offering a larger cross-section than the 6000 and 6200 lines for the same bore diameter. This makes the series suitable for procurement programs where radial load demand is higher but axial space remains constrained. Bore sizes span 10 mm to 50 mm, with pressed steel cages as standard and polyamide cages available on request. The raceway geometry supports combined radial and axial loading, and the standard clearance class is CN with C3 and C4 selectable at order stage. Open, ZZ, and 2RS variants are produced on the same dimensional platform, so purchasing decisions can be consolidated under a single part family while sealing requirements differ between end applications.
Higher section for load demand
The larger cross-section relative to light-section series increases radial capacity while retaining the same bore envelope for shaft compatibility.
One platform, multiple variants
Sealing type and clearance class are selected per order line without changing boundary dimensions, simplifying spare part planning.
Stable production runs
Process parameters are fixed per batch, so dimensional and running accuracy remain comparable across repeat purchase orders.
Inspection documentation
Dimensional reports and batch traceability records accompany shipments for incoming quality checks and supplier audits.
Order reference data
Bore diameter10 mm to 50 mm
Outer diameter26 mm to 80 mm
Width8 mm to 18 mm
Dynamic load rating7.5 kN to 33.0 kN
Static load rating4.0 kN to 20.0 kN
Cage optionsPressed steel / polyamide
Clearance classesCN / C3 / C4
Sealing variantsOpen / ZZ / 2RS
Grease fillLithium base, 30-45 percent free space
PackagingIndustrial carton / bulk tray
Typical specification areas
Pump and compressor builds
Shaft support in medium-duty centrifugal pumps and reciprocating compressor drive ends.
Reduction gear units
Input and output shaft bearings in light and medium gear reducers where section height is restricted.
Motor end brackets
Rotor support in motors larger than fractional horsepower, including fan-cooled and enclosed types.
Agricultural drive lines
Bearing positions in seeders, conveyors, and drive shafts subject to dust and varying load.
Textile machinery
Roller and spindle support where medium radial load combines with continuous rotation.
Material handling
Roller and pulley bearings in conveying systems with moderate load and speed requirements.
Procurement inquiries
How does the 6400 section compare with the 6200 series?
The 6400 series carries a larger outer diameter and width for the same bore, raising radial load capacity. If the housing envelope accommodates the larger section, the 6400 series provides additional margin without changing shaft size.
Can mixed sealing variants be ordered in one shipment?
Yes. Open, ZZ, and 2RS variants share boundary dimensions, so multiple sealing types can be combined within a single purchase order. Each line item is confirmed on the specification sheet before production.
What lead time applies to non-standard clearance classes?
C3 and C4 clearance orders are scheduled alongside standard production batches. Lead time depends on current stock allocation and is confirmed at order acceptance. Semi-finished stock reduces waiting time for recurring requirements.
Are cage material substitutions possible for existing part numbers?
Cage material can be changed between pressed steel and polyamide for most sizes, subject to speed and temperature limits of the application. Substitution requests are reviewed against the operating conditions before confirmation.
Warehouse and line-side notes
01
Sealed packaging handling
Keep corrosion-inhibiting wraps intact until line-side issue. Exposed raceways absorb moisture during seasonal temperature shifts and develop staining that affects inspection results.
02
Mounting force direction
Press force applies to the ring under interference fit. Load passing through the ball set leaves indentations that appear as running noise after the assembly reaches operating speed.
03
Housing bore verification
Check roundness and surface finish before fitting. Residual chips or burrs alter the effective interference and shorten service life in continuous-duty positions.
04
Lubricant selection for open variants
Match grease consistency and base oil viscosity to rotational speed and ambient temperature. Sealed variants arrive pre-filled and require no additional lubrication before assembly.
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