Low Friction High-Speed Double Row Deep Groove Ball Bearings 4310atn 4211atn 4311atn 4212atn

• Customization: Available
• Product Name: Double Row Deep Groove Ball Bearing
• Keywords: Ball Bearing
• Model NO.: 4310ATN 4211ATN 4311ATN 4212ATN
• Model: 4305atn9
• Bore Diameter Cage: 25mm
• Outside Diameter: 62mm
• Width: 24mm
• Basic Dynamic Load Rating: 31.9 kN
• Basic Static Load Rating: 22.4 kN
• Number of Rows: 2
• Transport Package: Standard Packaging or Customized
• Specification: Standard specifications or customized
• Trademark: JD Bearing
• Origin: China
• HS Code: 84821010
• Production Capacity: 500000

Product Description

Product Description

                                                                           Double row deep groove ball bearing
 

• Versatile and robust design
• High-speed capability
• Accommodate high axial and radial loads in both directions
• Require little maintenance

Double row deep groove ball bearings correspond, in their design and operation, to a pair of single row deep groove ball bearings. They are robust in operation, requiring little maintenance, can operate at high speeds and accommodate radial and axial loads in both directions. They are slightly wider than single row bearings of the same bore and outside diameter but have a considerably higher load carrying capacity. This type of bearing is characterized by its simple design and versatility, making it one of the most widely used components in mechanical engineering. Featuring a single row of balls that run along deep raceways, these bearings are capable of handling both radial and axial loads, ensuring reliable performance in a variety of applications.

Detailed Photos

Double row deep groove ball bearings are very suitable for bearing arrangements where the load carrying capacity of a single row bearing is inadequate. For the same bore and outside diameter, double row bearings are slightly wider than single row bearings in the 62 and 63 series, but have a considerably higher load carrying capacity.

Double row deep groove ball bearings are only available as open bearings (without seals or shields). For bearing selection and technical details refer to the product table and set the filter "Design" to "Double row"

double row deep groove ball bearings are fitted with two snap-type, ball centred glass fibre reinforced PA66 cages (designation suffix TN9)
When used at high temperatures, some lubricants can have a detrimental effect on polyamide cages. For additional information about the suitability of cages, refer to Cages.

 

Product Parameters

Designation	d[mm]	D[mm]	B[mm]	C[kN]	C0[kN]	[r/min]	[r/min]
4200 ATN9	10	30	14	9.23	5.2	40 000	22 000
4201 ATN9	12	32	14	10.6	6.2	36 000	20 000
4301 ATN9	12	37	17	13	7.8	34 000	18 000
4202 ATN9	15	35	14	11.9	7.5	32 000	17 000
4302 ATN9	15	42	17	14.8	9.5	28 000	15 000
4203 ATN9	17	40	16	14.8	9.5	28 000	15 000
4303 ATN9	17	47	19	19.5	13.2	24 000	13 000
4204 ATN9	20	47	18	17.8	12.5	24 000	13 000
4304 ATN9	20	52	21	23.4	16	22 000	12 000
4205 ATN9	25	52	18	19	14.6	20 000	11 000
4305 ATN9	25	62	24	31.9	22.4	18 000	10 000
4206 ATN9	30	62	20	26	20.8	17 000	9 500
4306 ATN9	30	72	27	41	30	16 000	8 500
4207 ATN9	35	72	23	35.1	28.5	15 000	8 000
4307 ATN9	35	80	31	50.7	38	14 000	7 500
4208 ATN9	40	80	23	37.1	32.5	13 000	7 000
4308 ATN9	40	90	33	55.9	45	12 000	6 700
4209 ATN9	45	85	23	39	36	12 000	6 700
4309 ATN9	45	100	36	68.9	56	11 000	6 000
4210 ATN9	50	90	23	41	40	11 000	6 000
4310 ATN9	50	110	40	81.9	69.5	10 000	5 300
4211 ATN9	55	100	25	44.9	44	10 000	5 600
4311 ATN9	55	120	43	97.5	83	9 000	5 000
4212 ATN9	60	110	28	57.2	55	9 500	5 300
4312 ATN9	60	130	46	112	98	8 500	4 500
4213 ATN9	65	120	31	67.6	67	8 500	4 800
4214 ATN9	70	125	31	70.2	73.5	8 000	4 300
4215 ATN9	75	130	31	72.8	80	7 500	4 000
4216 ATN9	80	140	33	80.6	90	7 000	3 800

Certifications

Packaging & Shipping

Installation Instructions

Installation Manual for Double Row Deep Groove Ball Bearings

1. Pre-Installation Preparation

• Cleaning:
  Wipe the shaft, housing, and mating surfaces with lint-free cloths to remove dust, oil, or burrs.

• Dimensional Tolerance Check:
  Verify the tolerance compatibility between shaft diameter/housing bore and bearing inner/outer rings (transition or interference fit recommended).

• Tool Preparation:
  Hydraulic nut, induction heater (heating temperature ≤120°C), torque wrench, clearance gauge.

2. Installation Methods

• Press-Fit Method:

  1. Align the bearing inner ring with the shaft shoulder without tilting.

  2. Apply uniform pressure on the inner ring face via a press (never apply force on outer ring or rollers).

  3. Post-installation check: Ensure smooth rotation without abnormal noise.

• Thermal Mounting:

  1. Heat the bearing to 80-120°C (oil bath or induction heating; open flame prohibited).

  2. Quickly push the bearing to the shaft position and cool naturally.

• Tapered Shaft Mounting:

  1. Use lock nuts (e.g., KM-type) to axially press the inner ring.

  2. Tighten the nut to manufacturer-specified torque and install anti-loosening washer.

3. Clearance Adjustment

• Ensure axial preload meets design requirements. Measure axial clearance with a dial indicator (recommended: 0.02-0.05mm).

• Interference fit may reduce clearance; adjust via calculated compensation.

4. Lubrication

• Fill 30-50% of bearing space with high-performance grease (e.g., lithium or polyurea base).

• For high-speed applications (>60% limit speed), oil-mist lubrication is recommended.

5. Sealing & Protection

• Inspect seals (contact/non-contact type) for integrity. Orient lip seals toward contamination sources.

• Perform no-load test run post-installation; monitor temperature rise (ΔT ≤40°C) and vibration (≤ISO 10816).

6. Prohibited Actions

• Never strike bearing rings or rolling elements directly.

• Avoid prolonged heating >120°C to prevent annealing.

• Do not mix incompatible lubricants.

Company Profile

FAQ

 

Q1: What about the MOQ? Can you accept a sample order?
A: Our company MOQ is 1pc, and we can accept sample orders.

Q2: Can you accept OEM/ODM?
A: Yes, we can.Customizing according to your requirements or drawing.

Q3: Do you supply door-to-door service?
A: By air or express(DHL, FEDEX, EMS, etc.)

Q4: Could you tell me the materials of your bearings?
A: Chrome steel, carbon steel, stainless steel, ceramic, and plastic material.

Q5: Are you a factory or trading company?
A: We have our factory, JUDONG Bearing is specializes in manufacturing and exporting bearings.