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20mm Angular Contact Bearing, P/N HYKH6004CTA-PR

20mm Angular Contact Bearing, 17°

Quantity: One pair

Part Number: HYKH6004CTA

Bearing Size: 6004   20mm ID x 42mm OD x 12mm W


Ceramic Balls Si3N4


20mm Angular Contact Bearing,  P/N HYKH6004CTA-PR

Quantity: One pair

Dimensions: 20mm ID x 42mm OD x 12mm Width

These bearings are new and have not been opened from the factory. These bearings are commonly used in spindles and are designed for high speed operation. They come greased (20 ~25% fill) and never require maintenance. Instructions for proper configuration installation are included. Please note: We do not offer refunds or warranty the bearings. Bearings are susceptible to failure for mishandling, contamination, dropping, improper cylindrical fits and misalignment of mating components. GMN bearings are made in Germany and are comparable in quality and precision to any bearing manufacturer. We consider them one of the top companies in the world in regards to bearing quality. If you need assistance call our technical support (714-307-2332). All bearings require a break in procedure.

The KH series use a “small ball” compared to the SM series. They handle less load but have a higher speed rating. The KH bearings are sealed. These can be used with oil lubricating or mist systems, but the seals need to be removed. The “HY” in the part number indicate hybrid bearings, which are ceramic balls with steel races.

Manufacturer: GMN (link to GMN Home Page)      Link to GMN’s Product Data: HYKH6004CTA

Bearing Grade: ABEC 7  DIN P4   ISO Class 4                  Pre-Load: DUL – duplex ultra light

Ball Material: Ceramic (Silicon Nitride Si3N4)  Race material: 100 Cr 6 equivalent to SAE 52100, Operating temperature 150°C. (High Nitrogen Steel available, call for details).

Cage Material: “TA” Textile reinforced phenolic resin, 120°C operating temperature. (“TXM” versions available with 250°C operating temperature, call for details).


Bearing Specs

Bearing Dimensions

Bore Diameter d [mm] 20
Outer Diameter D[mm] 42
Single Bearing Width B [mm] 12
Ball Diameter Dw [mm] 5.56


Bearing Load Ratings

Dynamic Radial Load Rating C [N] 6,500
Static Radial Load Rating – Steel Balls C0 [N] 3,050
Static Radial Load Rating – Si3N4 Balls C0 HY [N] 12


Bearing RPM Ratings

Speed Value – Oil Lube (Spring Pre-Loaded) noil [1/min] 87,500
Speed Value – Grease Lube (Spring Pre-Loaded) ngrease [1/min] 65,000


Geometrical Data

Number of Balls Z [Qty] 14
Contact Angle a0 [°] 17
Bearing Weight m [kg] 0.063


Bearing Preload Data

Minimum Spring Pre-Load Ff [N] 235


Disclaimer: All sales of bearing product purchases are final. We do not accept returns or exchanges of bearings.

Weight .5 lbs
Dimensions 10 × 10 × 5 in