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Luoyang Rockewell Precision Bearing Co.,Ltd

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Bearings

Single Row Open Angular Contact Ball Bearing

Ball Bearing 719C/ACP4 Ball Bearing 718C/ACP4 Ball Bearing 70C/ACP4 Ball Bearing 72C/ACP4

Single Row Ball Bearing With Angular Contact Seal

H719-2RZC/P4 Double Seal Angular Contact Ball Bearing H718-2RZC/P4 Double Sealed Angular Contact Ball Bearings H70-2RZC/P4 Double Seal Angular Contact Ball Bearing H72-2RZC/P4 Double Sealed Angular Contact Ball Bearings 3NCHAR014CA-6/1BYZ P2 Ceramic Ball Spindle Bearing Double Seal

Screw bearing

BS Series Ball Screw Bearings BS Series High-precision Ball Screw Bearings with Double Seals TAC Series Ball Screw Bearings TAC High-precision Ball Screw Bearings with Double Seals 7602 Series Ball Screw Bearings 7602 High-precision Ball Screw Bearings With Double Seals 7603 Series Ball Screw Bearings 7603 Series Ball Screw Support Bearings With Double Seals FL760/P4 DBB Series Flange Type Spindle Bearings ZKLF Series Spindle Bearings Combined Bearings Series ZARN ZKLN Series Spindle Bearings

BNR/BAR/BTR/BER/BGR High-speed Thrust Angular Contact Ball Bearings

BGR10/19 Ultra-high Speed Ball bearing BER10/19 Ultra High Frequency Spindle Bearing BTR10/19 Main Shaft Thrust Bearing Ultra High Frequency BAR10/19 Ultra High Frequency Spindle Bearing BNR10/19 Main Shaft Thrust Bearing Ultra-high Frequency

Servo Motor Bearings

Servo Motor Bearing

Crossed Roller Bearings

Crossed Roller Bearings YRT Series Crossed Roller Bearings Series RA Crossed Roller Bearings Series RU RB Series Cross Roller Bearings

DLR Directly Lubricates Bearings

HCB719-CDLR-P4S Series HCB719-EDLR-P4S Series HC719-EDLR-P4S Series HCB70-CDLR-P4S Series HCB70-EDLR-P4S High-speed Spindle Bearings HC70-EDLR-P4S Series

High Speed Floating Displacement Bearing FD

FD1010-2RSD-T-P4S Series With Seal FD1010-DLR-T-P4S Series Direct Lubrication FD1010-T-P4S Series FD1010-K-T-P4S Series Tapered Bore

Cylindrical Roller Bearings

Tandem Radial Thrust Cylindrical Roller Bearing NNU49 Double Row Cylindrical Roller Bearings Series NNU49K Double Row Cylindrical Roller Bearings Series N10 Series Cylindrical Roller Bearings NN30K Series (Nylon/Brass Holder)

Tandem Thrust Cylindrical Roller Bearings

Tandem Thrust Cylindrical Roller Bearing

2344/2347 Double-way Thrust Angular Contact Ball Bearing

Three Column Thrust Angular Contact Ball Bearing With Flange 2344 Series Double Angular Contact Thrust Ball Bearings 2347 Series Double Angular Contact Thrust Ball Bearings

Flexible Bearing

Flexible Bearings

Thin Wall Bearings

Thin-walled Constant Cross-section Deep Groove Ball Bearings Sealed Thin-walled Bearing Type X Thin-walled Deep Groove Ball Bearing With Constant Section Seal Thin-walled Constant Cross-section Angular Contact Bearing Thin-walled Bearings With Four Contact Points And Constant Section Seal Thin-walled Metric Bearings PB Series Metric X-type Thin Wall Four Point Contact Ball Bearings Metric A-type Thin-wall Angular Contact Ball Bearings Metric C-type Thin Wall Deep Groove Ball Bearings

Double Row Angular Contact Ball Bearing

Double Row Angular Contact Bearing With Nylon Retainer Double Row Ball Bearings With Crowned Steel Cage Double Row Angular Contact Bearing With S-shaped Holder Double Row Angular Contact Bearing With U-shaped Holder Double Row Angular Contact Bearing With Brass Retainer Double Row Angular Contact Bearing With Two Inner Rings Thin-walled Bearing With Nylon Retainer (Series 38, 39, 30) LR50 Series Roller Bearing Rollers LR52 LR53 (series 3057, 3067, 3058, 3068) Double Row Angular Contact Roller Bearing For Guide Rollers

Double Row Deep Groove Ball Bearings

Double Row Deep Groove Ball Bearing With Nylon Retainer Double Row Deep Groove Ball Bearing With Crown Steel Retainer

Stainless Steel Angular Contact Ball Bearings

H719C-AC Ultra High Speed Bearing Stainless Steel 719C/AC Angular Contact Bearings Stainless Steel Angular Contact Bearing Standard Type 718C/AC H70C-AC Ultra High Speed Bearing Stainless Steel Angular Contact Bearing Standard Type 70C/AC Stainless Steel Angular Contact Bearing Standard Type 72C/AC BGR10/19 Ultra High Speed Spindle Bearings BTR10/19 Ultra High Speed Spindle Bearing BAR10/19 Ultra High Speed Spindle Bearings BER10/19 Ultra High Speed Spindle Bearings BNR10/19 Ultra High Speed Spindle Bearings H718-2RZC Double-sided Sealed Bearing H70-2RZC Double-sided Sealed Bearing H72-2RZC Double-sided Sealed Bearing H719-2RZC Series Ultra High Speed Sealed Stainless Steel Bearings

BAX Series Angular Contact Bearings

BAX Series Angular Contact Bearings

Inch Angular Contact Ball Bearings

LYLKWE Series Inch Angular Contact Ball Bearings
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Home / Double Row Angular Contact Ball Bearing / Double Row Angular Contact Bearing With Brass Retainer

Double Row Angular Contact Bearing With Brass Retainer

Double Row Angular Contact Bearing With Brass Retainer Two rows of balls arranged symmetrically at specified contact angles (typically 30°/40°), enabling simultaneous radial (Fᵣ), bi - directional axial (±Fₐ) and moment (M) load capacities

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TOP PRODUCT TYPES DENTAIL APPLICATION RELATED PRODUCTS

Double Row Angular Contact Bearing With Brass Retainer

	Type	Main dimensions			Rated load		Rated speed
					Dynamics	Static	Speed limit
Mail		d[mm]	D[mm]	B[mm]	C[kN]	C₀[kN]	[r/min]
	3305M	25	62	25	23.4	18.0	-
	3304M	20	32	22	18.3	12.9	-
	3222M	110	200	69	212.9	244.1	-
	3221M	105	190	65	214.4	242.0	-
	3220M	100	180	60	206.6	224.7	-
	3219M	95	170	55	164.6	183.3	-
	3218M	90	160	32	159.1	169.7	-
	3217M	85	150	49	126.3	140.4	-
	3216M	80	140	44	116.3	127.5	-
	3215M	75	130	41	96.8	105.0	-
	3214M	70	125	39	87.8	94.3	-
	3213M	65	120	38	84.9	87.8	-
	3212M	60	110	36	82.3	81.1	-
	3211M	55	100	33	66.3	64.4	-
	3210M	50	90	30	51.9	49.6	-
	3209M	45	85	30	50.1	45.7	-
	3208M	40	80	30	47.9	41.6	-
	3207M	35	72	27	34.3	28.4	-

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Dentail

Dual Angular Contact Configuration：Two rows of balls arranged symmetrically at specified contact angles (typically 30°/40°), enabling simultaneous radial (Fᵣ), bi - directional axial (±Fₐ) and moment (M) load capacities
Brass Retainer Technology：Precision - machined from high - strength brass (CuZn39Pb3), providing:
✓ Uniform ball spacing (adjacent ball pitch deviation ≤0.05mm)
✓ Dynamic balance optimization
✓ Enhanced self - lubrication

Stiffness Enhancement：40% higher axial stiffness in preloaded condition (vs single - row bearings)
Extended Life：Vacuum - degassed bearing steel (SUJ2) with brass retainer ensures L₁₀ life of 3,000h (P2 class)

Application

The bearings can be used in the following industries

Machine Tool Spindles：CNC machining center spindles (18,000rpm, radial runout ≤3μm)
Aerospace Drives：Helicopter main gearboxes (2,000N·m torque capacity)
Precision Instruments：Centrifuge drum supports (unbalance ≤5g·mm)
Industrial Robots：SCARA robot XY axes (repeatability ±0.01mm)