Track Needle Roller Bearing Nutr20A Electrical Equipment Bearing 20*47*25mm

• Customization: Available
• Cage: With Cage
• Rows Number: Single
• Model NO.: Needle Bearing
• Load Direction: Thrust Bearing
• Style: Without Outer Ring
• Material: Bearing Steel
• Type: Open
• Support: OEM & ODM
• Precision: P0, P6, P5, P4, P2
• Sample: Support
• Feature: Long Life
• Fatigue Load Limit: 4.55kN
• Rolling Body: Roller Bearings
• Spherical: Non-Aligning Bearings
• Transport Package: Export Packing
• Specification: According to customer needs
• Origin: Shandong
• Production Capacity: 400, 000 Pieces/Month

Product Description

Product Description

Needle roller bearing /cam follower is composed of a stud used as the tray of a group of rollers and a thick wall outer ring .The shoulder of the stud and the surface retaining ring on the stud form the guiding faces on the two sides of the outer ring.When the curve rollers are running on the plain tray or cam wheel.the inner stress on the rollers will increase due to the deformation of the outer ring.

d	D	B	Type	d	D	B	Type
3	5	7	K 3x5x7	26	38	32	K 26x38x32
3	5	9	K 3x5x9	28	33	13	K 28x33x13
3	6	7	K 3x6x7	28	33	17	K 28x33x17
4	7	7	K 4x7x7	28	33	27	K 28x33x27
4	7	10	K 4x7x10	28	34	17	K 28x34x17
5	8	7	KT 587N	28	35	16	K 28x35x16
5	8	8	K 5x8x8	28	35	18	K 28x35x18
5	8	10	K 5x8x10	28	35	28	K 28x35x28
6	9	7	KT 697N	28	36	20	K 28x36x20
6	9	8	K 6x9x8	28	41	38	K 28x41x38
6	9	10	K 6x9x10	30	34	13	K 30x34x13
6	10	13	K 6x10x13	30	35	13	K 30x35x13
7	9	7	K 7x9x7	30	35	16	K 30x35x16
7	10	8	K 7x10x8	30	35	17	K 30x35x17
7	10	10	K 7x10x10	30	35	24	K 30x35x24
8	11	8	K 8x11x8	30	35	27	K 30x35x27
8	11	10	K 8x11x10	30	36	13	K 30x36x13
8	11	13	K 8x11x13	30	36	20	K 30x36x20
8	12	8	K 8x12x8	30	36	25	K 30x36x25
8	12	10	K 8x12x10	30	36	30	K 30x36x30

 

Raw material

1)Our precision anti-friction bearings are usually made of chrome steel, which consist of about 1% carbon, 1.5% chromium and a small amount of manganese, silicon, and sometimes a small amount of molybdenum.

2)We offers you a wide range of material options such as CCr15, 100Cr6, S-KF 3. SUJ-2 etc. At the same time, some models of are available in stainless steel.

Bearing cage

1)The high-quality cage used by bearings ensure that the rollers and balls are evenly distributed in the bearing rings and can be rotated properly.

2)The cage is divided into stamped cage, brass solid cage, reinforced nylon 66 etc.

Type of lubrication

Lubricating oil is the basic lubricant for ball bearings. The silicone and fluorocarbon synthetic oils that adopted by have lower volatility and wider temperature/viscosity characteris

Radial clearance

The radial clearance is the gap between the steel ball and the ring. We are able to tailored to you based on temperature conditions, interference fit, misalignment of the bearing axis, required noise level and speed.

Service life and the rated load

The bearing life is the number of bearing rotations before the fatigue occurs on the ring or any rolling element (or the rotation time at a constant speed). HoweverT he service life of bearings are 5%-8% longer than other bearings of the same model, through strict production process, high standard material selection, precision control.

 

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FAQ

Service Quality
The warranty period is 12 months since you receive the goods,we could provide find after-sales service and extend the warranty timewhile you need other technical supports.

We are a highly qualified team, our employees have wide experiences and understand your real needs and key points, being able togenerate solutions to fully satisfy you. We believe that the product quality and customer service are our key work, and consistently try to satisfy or exceed the clients' expectations.
FAQ
1. We have own factory, so production process and cost are strictly controlled;
2. Provide one-year warranty period for most products;
3. Ensure 100% QC inspection;
4. Provide samples;
5. Treat every email within 24 hours. (Usually much faster) .
We Guarantee
Good quality, Competitive price, Fast delivery, Best service