GMN Bearing USA’s ABEC 7 high precision ball bearings are made for high speed and heavy load applications.

GMN radial ball bearings are versatile, great in small spaces & when axial loads move in both directions.

GMN angular contact bearings (spindle bearings) are expertly crafted for speed, precision, & accuracy.

GMN Bearing USA offers quality, mid-precision radial ball bearings from ORS.

Ideal for heavy industrial and high-speed machinery, Koyo cylindrical roller bearings feature tight tolerances, high radial load capacity, and excellent RPM ratings.

Our one-way sprag clutches are great for applications with low to high torque capacity.

Includes built-in ball bearing support. Supports HEAVY loads & has a high torque capacity: 53 to 588 Nm. Bore (ID) sizes: 10 to 60 mm (0.393 to 2.362 in)

Includes built-in ball bearing support. Supports MEDIUM loads & low to medium torque capacity: 53 to 267 Nm. Bore (ID) sizes: 17 to 40 mm (0.669 to 1.57 in)

No built-in ball bearing support. Good for large orders & low to high torque needs: 1 to 2673 Nm. Bore (ID) sizes: 2 to 240 mm (0.078 to 9.448 in)

A unique "non-lift-off" design without drag clips ideal for automotive builds or performance racing.

No built-in ball bearing support. Has no RPM limits & Supports high torque needs: 609 to 14,060 Nm. Bore (ID) sizes: 38.09 to 220 mm (1.499 to 8.66 in)

This heavy-duty clutch (aka a hold-back clutch) is good for high torque operations and ensures motion freezes in place. Bore (ID) sizes: 15 to 40 mm. (0.59 to 1.73 in)

Designed for HEAVY-DUTY applications that require tough durability.

Our non-contact labyrinth seals are the first line of protection for bearing systems.

The best protection for your bearing. Easy to install with a simple “drop-in” next to your bearing. No added space needed. CF seals offer 100% sealing efficiency against splashing liquids.

Protection against low contamination & splashing liquids.

Designed with grooves in the outer ring to offer more protection (than our L-type seal) against contamination and direct spray liquids. Liquid gets pushed out through outer grooves when in rotation.

Our GMN Gap Seals are plastic and a great choice for washdown applications, such as food conveyors and food manufacturing facilities

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HY KH 61903 E TA Ceramic Angular Contact Bearing

Request a Quote Jump to Specifications

Part Number	HY KH 61903 E TA
Series	KH
Bearing Type	Angular Contact
Ball Material	Ceramic (Si3N4)
Hybrid (Si3N4 Balls)	1
Ring Material	Silicon Nitride (Si3N4)

Dimensions

Bore Diameter	d [mm]	17
Outer Diameter	D [mm]	30
Width	B [mm]	7
Pitch Circle Diameter	d_m [mm]	23.300
Ball Diameter	D_w [mm]	2.778
OD Inner Ring	d₁ [mm]	21
OD Inner Ring (Open Side)	d₂ [mm]	20.700
ID Outer Ring	D₁ [mm]	25.600
ID Outer Ring of Contact Surface	D_1Z [mm]	26.200
ID Outer Ring (Open Side)	D₂ [mm]	26.200
ID Outer Ring (Open Side) of Contact Surface	D_2Z [mm]	26.800
Chamfer	r_s [mm]	0.300
Chamfer (Open Side)	r_1s [mm]	0.300

Ratings

Limiting Speed: Oil Lub.	n_oil [RPM]	100,000
Limiting Speed: Grease Lub.	n_grease [RPM]	76,000
Dynamic Radial Load Rating	C_r [N]	2,060
Static Radial Load Rating - Steel Balls	C_0r [N]	990
Fatigue Load Limit	C_ur [N]	38

Geometric Data

Number of Balls	Z [qty]	18
Contact Angle	a₀ [°]	25
Bearing Weight	m [kg]	0.017

Mating Part Dimensions

Chamfer Associated Component	r_{a max} [mm]	0.300
Chamfer Associated Component (Open Side)	r_{b max} [mm]	0.300
Abutment Diameter Inner Ring	d_{a,b min} [mm]	18.700
Abutment Diameter Outer Ring	D_{a max} [mm]	28.600
Abutment Diameter Outer Ring	D_{b max} [mm]	28.600
Oil Nozzle Position	d_T [mm]	22.200

Bearing Preload Data

Light Pre-Load	F_v L [N]	17
Light Axial Rigidity	C_ax L [N/µm]	39
Medium Pre-Load	F_v M [N]	50
Medium Axial Rigidity	C_ax M [N/µm]	57
Heavy Pre-Load	F_v S [N]	100
Heavy Axial Rigidity	C_ax S [N/µm]	74
Minimum Spring Pre-Load	F_f [N]	70

HY KH 61903 E TA Ceramic Angular Contact Bearing

Dimensions

Ratings

Geometric Data

Mating Part Dimensions

Bearing Preload Data

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