Bt4b 332981/Ha4 Four-Row Tapered Roller Bearing

• Customization: Available
• Bore Diameter: 877.888 mm
• Outside Diameter: 1 220 mm
• Model NO.: BT4B 332981/HA4
• Width: 844.55 mm
• Basic Dynamic Load Rating: 28 100 Kn
• Basic Static Load Rating: 76 500 Kn
• Number of Rows: 4
• Bore Type: Cylindrical with Helical Groove
• Transport Package: Plywood
• Trademark: SKF
• Origin: China
• HS Code: 8483200000
• Production Capacity: 200000set/Year
• Package Size: 90.00cm * 125.00cm * 845.00cm
• Package Gross Weight: 3083.000kg

Product Description

Product Description

Deep groove ball bearing with seals

Single row deep groove ball bearings with seals on one or both sides are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.

• Integral sealing prolongs bearing service life
• Simple, versatile and robust design
• Low friction and high-speed capability
• Accommodate radial and axial loads in both directions
• Require little maintenance

 

Product Parameters

Dimensions

Bore diameter	877.888 mm
Outside diameter	1 220 mm
Width, total	844.55 mm
Width, inner ring	844.55 mm
Width, outer ring	844.55 mm
Contact angle	12.5 °

Performance

Basic dynamic load rating	28 100 kN
Basic static load rating	76 500 kN

Properties

Bearing part	Complete bearing
Number of rows	4
Locating feature, bearing outer ring	None
Bore type	Cylindrical with helical groove
Cage	Machined metal
Arrangement of contact angle (double-row bearing)	Not applicable
Matched arrangement	No
Coating	Without
Sealing	Without
Lubricant	None
Relubrication feature	Without

Dimensions

d	877.888 mm	Bore diameter
D	1 220 mm	Outside diameter
B	844.55 mm	Total bearing width over inner rings
T	844.55 mm	Total bearing width over outer rings
d1	≈950 mm	Abutment diameter shaft
D1	≈1 090 mm	Abutment diameter housing
r1,2	min.4.8 mm	Chamfer dimension inner ring
r3,4	min.12.7 mm	Outer ring radius (chamfer)

Calculation data

Basic dynamic load rating	C	28 100 kN
Basic static load rating	C0	76 500 kN
Fatigue load limit	Pu	4 550 kN
Comparative radial load rating	CF	6 950 kN
Comparative axial load rating	CFa	1 140 kN
Thrust factor	K	1.76
Limiting value	e	0.33
Calculation factor	Y1	2
Calculation factor	Y2	3
Calculation factor	Y0	2

OUR WAREHOUSE

  

OUR COMPANY

Guangdong Lingyi Industrial Technology Co., Ltd set up since 1997, with 20 years development, we become one of the best companies in the industry for mechanical and lectrical products system integration, logistics service and investment. The company has set up 21 subsidiaries located in southern, central, eastern and northern China, .

The products categories include:

1, Transmission Products: High and low voltage electric motors, geared motors, gear boxes, bearings, inverter and complete electrical cabinets

2, Automation Products: Automation systems, motion control, low voltage control products and systems, sensor and communication products,

3, Power distribution Products: Low-voltage power distribution products, medium voltage circuit breaker, intelligent building system and equipment.

4, Machinery components.

Count on our 20 years industry experiences. Guangdong Lingyi Industrial Technology Co., Ltd give you one-stop industrial products sourcing, procurement, system integration and services, satisfy your different needs in the industry.

We are looking forward to cooperating with you.
  


 

FAQ

Q1: What about the shipping methods?

A1: For urgent order and light weight, you can choose the following express: UPS, FedEx, TNT, DHL, EMS.

 For heavy weight, you can choose to deliver the goods by air or by sea to save cost.
 

Q2: What about the payment methods?

A2: We accept T/T, L/C for big amount, and for small amount, you can pay us by PayPal, Western Union etc.
 

Q3: How much does it cost to ship to my country?

A3: It depends on seasons. Fee is different in different seasons. You can consult us at all times.
 

Q4: What's your delivery time?

A4: Usually we produce within 25-30days after the payment confirmed.
 

Q5: Can I print our logo/code/series number on your motor?

A5: Yes, of course.
 

Q6: Can I order some sample for our testing?

A6: Yes, but it needs some expense.
 

Q7: Can you customize my product in special requirment?

A7: Yes, we can offer OEM.