Industrial Machinery Tapered Roller Bearings 331138AG Bt4-0027AG/Ha1 330758bg Bt4b328912e3/C675

• Customization: Available
• Product Name: Single Row Tapered Roller Bearing
• Keywords: Roller Bearing
• Model NO.: 331138AG BT4-0027AG/HA1 330758BG BT4B328912E3/C675
• Bore Diameter: 35 mm
• Outside Diameter: 62 mm
• Width, Total: 18 mm
• Basic Dynamic Load Rating: 42.9 kN
• Basic Static Load Rating: 54 kN
• Reference Speed: 8 000 R/Min
• Limiting Speed: 10 000 R/Min
• Product Net Weight: 0.224 Kg
• Transport Package: Standard Packaging or Customized
• Specification: Standard specifications or customized
• Trademark: JD Bearing
• Origin: China
• HS Code: 8482102000
• Production Capacity: 200000
• Package Size: 800.00cm * 800.00cm * 1000.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

    Single row tapered roller bearings are designed to accommodate combined radial and axial loads and provide low friction during operation.
    The inner ring, with rollers and cage, can be mounted separately from the outer ring.
    These separable and interchangeable components facilitate mounting, dismounting and maintenance.
    By mounting one single row tapered roller bearing against another and applying a preload, a rigid bearing application can be achieved.

    The design advantages of tapered roller bearings are as follows. Firstly, they can handle both radial and axial loads, providing a more comprehensive load-bearing capacity. Secondly, the tapered rollers in the bearing allow for better distribution of the load, reducing stress on individual components and increasing the bearing's durability.
    Additionally, the design of tapered roller bearings enables them to operate at higher speeds with reduced friction and heat generation, improving the overall efficiency of the system. Finally, their compact design makes them suitable for a wide range of applications, especially in situations where space is limited.

Detailed Photos

 

Product Parameters

    

Designation	Principal dimensions				Basic load ratings		Design variant/feature
					dynamic	static
	d[mm]	D[mm]	B[mm]	T[mm]	C[kN]	C0[kN]
331138 AG	139.7	200.025	157.165	160.34	858	2 080	TQO/WI
331480 G	177.8	247.65	192.088	192.088	1 230	3 000	TQO/GWI
BT4-0010 G/HA1C400VA903	177.8	247.65	192.088	192.088	1 020	2 500	TQOS/GWI
BT4-0027 AG/HA1	198.438	284.162	225.425	225.425	1 760	3 750	TQON/GW
BT4-0013 G/HA1C400VA903	206.375	282.575	190.5	190.5	1 140	2 500	TQO/GWI
BT4-0021 G/HA1	206.375	282.575	190.5	190.5	1 400	3 350	TQON/GW
BT4-0035 E8/C355	220	295	315	315	1 993	4 050	TQOS/GW
BT4-0040 E8/C355	220.662	314.325	239.712	239.712	2 120	4 000	TQOS/GW
BT4-0020/HA1	240	338	248	248	2 550	5 500	TQON/W
330862 B	244.475	327.025	193.675	193.675	1 830	4 300	TQO/WI
BT4-0039 E8/C355	254	358.775	269.875	269.875	3 050	5 700	TQOS/GW
BT4-0044 E8/C560	266.7	355.6	230.188	228.6	2 320	4 650	TQON/GW
BT4-0044 E83/C420	266.7	355.6	230.188	228.6	2 320	4 650	TQOS/GW
BT4B 331168 B	269.875	381	282.575	282.575	3 080	7 500	TQO/WI
BT4-0049 E81/C510	279.4	393.7	269.88	269.88	3 400	5 850	TQOS/GW
BT4-0048 E8/C475	279.578	380.898	244.48	250	2 450	4 800	TQON/GW
BT4-0015 G/HA1C400VA903	285.75	380.898	244.475	244.475	2 200	5 500	TQO/GWI
BT4-0047 E8/C475	285.75	380.898	244.48	250	2 450	4 800	TQON/GW
BT4B 331452 G/HA1	288.925	406.4	298.45	292.45	3 580	9 000	TQO/GWI
330758 BG	304.902	412.648	266.7	266.7	2 970	7 500	TQO/GWI
BT4-0004 G/HA1	304.902	412.648	266.7	266.7	3 405	7 500	TQON/GW
BT4-8093 G/HA1VA901	310	430	310	310	2 860	6 550	TQOSN/GWSI
BT4B 332647 G/HA1	330.2	444.5	301.625	301.625	3 690	9 650	TQO/GWI
BT4-8113 E2/C500	330.302	438.023	247.65	254	3 625	6 400	TQOSN/GWSI
BT4B 331228 G/HA1C200	346.075	488.95	358.775	358.775	5 280	12 500	TQO/GWI
BT4-8070 G/HA1VA901	347.662	469.9	292.1	292.1	3 910	8 500	TQOSN/GWSI
BT4B 328912 E1/C300	355.6	488.95	317.5	317.5	5 100	10 000	TQOSN/GWSI
BT4B 328912 E3/C675	355.6	488.95	317.5	317.5	5 100	10 000	TQOSN/GW
332059	360	510	380	380	5 610	14 300	TQO/GWI
BT4-8204 E1/C475	360	480	320	320	4 000	8 000

 

Certifications

Packaging & Shipping

Installation Instructions

Installation Guide for Tapered Roller Bearings


1. Pre-Installation Preparation

• Cleaning:
  Thoroughly clean the shaft, housing, and mating surfaces using lint-free cloths to remove contaminants such as dust, oil, or burrs.

• Inspection:
  Verify the dimensional tolerances of the shaft and housing to ensure compatibility with the bearing's inner and outer rings (interference fit recommended for the inner ring, transition fit for the outer ring).

• Tool Preparation:
  Prepare necessary tools, including hydraulic nuts, induction heaters (heating temperature ≤120°C), torque wrenches, and dial indicators for clearance measurement.

2. Installation Methods

• Press-Fit Method:

  1. Align the inner ring (cone) with the shaft shoulder, ensuring no tilting occurs.

  2. Apply uniform pressure on the inner ring using a press or hydraulic tool. Avoid applying force directly to the outer ring (cup) or rollers.

  3. After installation, check for smooth rotation and ensure there is no abnormal noise or binding.

• Thermal Mounting:

  1. Heat the inner ring to 80-120°C using an induction heater or oil bath (open flame heating is strictly prohibited).

  2. Quickly mount the heated inner ring onto the shaft and allow it to cool naturally.

• Tapered Shaft Mounting:

  1. For tapered shafts, use a lock nut (e.g., KM-type nut) to axially press the inner ring against the shaft shoulder.

  2. Tighten the lock nut to the manufacturer-specified torque value and secure it with a locking device (e.g., tab washer).

3. Clearance Adjustment

• Tapered roller bearings require proper axial clearance or preload adjustment to ensure optimal performance.

• Measure the axial clearance using a dial indicator. Adjust the lock nut to achieve the recommended clearance (typically 0.02-0.05mm for standard applications).

• For preloaded applications, follow the manufacturer's specifications to achieve the desired preload value.

4. Lubrication

• Apply a high-quality lubricant (grease or oil) suitable for the operating conditions.

• Fill 30-50% of the bearing's free space with grease for standard applications. For high-speed or high-temperature conditions, consider oil lubrication or oil-mist systems.

• Ensure the lubricant is compatible with the bearing material and operating environment.

5. Sealing and Protection

• Inspect and install appropriate seals (contact or non-contact type) to prevent contamination.

• Ensure the sealing lip is oriented toward the contamination source.

• Perform a no-load test run after installation to verify proper operation. Monitor temperature rise (ΔT ≤40°C) and vibration levels (≤ISO 10816 standards).

6. Prohibited Actions

• Never strike the bearing rings or rollers directly with a hammer or other tools.

• Avoid overheating the bearing during thermal mounting (maximum temperature: 120°C).

• Do not mix incompatible lubricants or use contaminated grease.

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.