M12749/LM12711 Tapered Roller Bearing Set (Cup & Cone) Bearings

• Rolling Body: Roller Bearings
• The Number of Rows: Multi-column
• Outer Dimension: Small and Medium-Sized (60-115mm)
• Material: Bearing Steel
• Spherical: Aligning Bearings
• Load Direction: Radial Bearing
• Model NO.: TRB020
• Separated: Separated
• Inner Bearing: LM12749
• Outer Bearing: LM12711
• Process: Grinding
• Application: Trailer Hub
• Transport Package: Wooden Box
• Specification: LM/Slim Line
• Trademark: HARSCO
• Origin: China
• HS Code: 8482109000
• Production Capacity: 500000PCS/Year

Product Description

LM12749 /LM12711 Tapered Roller Bearing
 

Part No.	Bearing Name	Bearing Type	Bearing Size	Bearing Kit
TRB020-IB	Inner bearing LM12749	Bearing Cone	ID:0.8656"	LM12749/11
TRB020-OB	Outer bearing LM12711	Bearing Cup	OD:1.8098"	LM12749/11

 

Specs:

• Bearing Cone Inner diameter: 0.8656"(21.986mm)
• Bearing Cup Outer diameter:  1.8098"(45.97mm)
• Total Thickness: 15.494mm / 0.61"
• Inner Bearing Cone: LM12749
• Outer Bearing Cup: LM12711
• Material: Steel
• Coatings: Black Oxide
• Model number: LM11949/10
• Structure: BEARING
• Dynamic Load Rating (Cr): 38600N
• Static Load Rating (Cor): 35300N
• Model: LM12749/LM12710 (Bore: 21.986mm / 0.8656", Outer Diameter: 45.97mm / 1.8098", Width: 15.494mm / 0.61")
   

roller bearing description

The inner and outer ring raceways are segments of cones and the rollers are tapered so that the conical surfaces of the raceways, and the roller axes, if projected, would all meet at a common point on the main axis of the bearing. This geometry makes the motion of the cones remain coaxial, with no sliding motion between the raceways and the outside diameter of the rollers.

This conical geometry creates a linear contact patch which permits greater loads to be carried than with spherical (ball) bearings, which have point contact. The geometry means that the tangential speeds of the surfaces of each of the rollers are the same as their raceways along the whole length of the contact patch and no differential scrubbing occurs.

The rollers are stabilized and restrained by a flange on the inner ring, against which their large end slides, which stops the rollers from popping out due to the "pumpkin seed effect" of their conical shape.

The larger the half angles of these cones the larger the axial force that the bearing can sustain.

Tapered roller bearings are separable into a cone assembly and a cup. The non-separable cone assembly consists of the inner ring, the rollers, and a cage that retains and evenly spaces the rollers. The cup is simply the outer ring. Internal clearance is established during mounting by the axial position of the cone relative to the cup, although preloaded installations without clearance are common.

Metric tapered roller bearings follow the designation system defined by ISO 355.

Ningbo Harsco Machinery Co., Ltd is a professional manufacturer of trailer parts in Ningbo, Zhejiang Province, China since 2016.

We can produce many trailer parts & accessories as follows: Towbars, axles, brake drums, hubs, brake disc, bearings, springs and springs and suspension kits, couplings, mudguards, U-Bolts, Jockey Wheels, keel rollers and brackets, wobble roller, wheel spacer, equalizers and all accessories related to trailers.

If you can send me the drawings or specifications of the trailer parts, mechanical parts and wheels, we can give you our price.

Welcome to enquiry and email me,thanks!

 

 

Q1: Do you have factory?
A: Yes, we have our own factory, own engineers, we can meet custom's unique requirement.

Q2: Can I have a sample order?
A: Yes, welcome sample order to test and check quality. Mixed samples are acceptable.

Q3: It's OK to print my logo on your product?
A: Yes, we can according to your exact requirement.

Q4:How do you ship the goods and how long does it take arrive?
A: We usually shipped by DHL, UPS, FedEx, it usually takes 3-5 days to arrive. Airline and sea shipping also optional.

Q5: What is your advantages?
A: We are professional supplier for more than ten years, we always put the quality and price at the first place. At the same time, our products are exported to various countries, we have full experience to solve thorny problems.


1-Welcome OEM

1. You can use your own brands or ours, if you use our brand, our professional team will help you design the packing.

2-Our service

1. You inquiry related to our products or prices will be replied in 24 hours.
2. Well-trained and experienced staffs to answer all your enquirys in fluent English.
3. Protection of your sales area, ideas of your design and all your private information.
4. We have a QC team, every product will be checked by them before packed.

3-Welcome to visit

1. When you come to our company visit us, we will arrange a car for picking up and help you book hotel. If you want to visit the local scenic spot, our colleague will accompany you.

4-Warranty

1. Customer should be provide the video and the pictures for the problem products.
2. Products returned within the warranty period must bear product number & date code.

5-After service

1. In production and after delivery, we will track on time and tell you goods situation.
2. When the goods arrived, if you find any design and quality questions, or difference from your samples, please feel free to contact us, we will find the question and solve it with you.