SKF Nrt 80 B Axial-Radial Cylindrical Super-Precision Roller Bearing

• Rolling Body: Roller Bearings
• The Number of Rows: Double
• Outer Dimension: Small and Medium-Sized (60-115mm)
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: NRT 80 B
• Material: Stainless Steel
• Spherical: Non-Aligning Bearings
• Load Direction: Axial Bearing
• Separated: Unseparated
• Bore Diameter: 80 mm
• Outside Diameter: 125 mm
• Width: 22 mm
• Basic Dynamic Load Rating - Radial Direc: 55 Kn
• Basic Static Load Rating - Radial Direct: 102 Kn
• Attainable Speed for Grease Lubrication: 350 R/Min
• Attainable Speed for Oil-Air Lubrication: 700 R/Min
• Transport Package: Plywood
• Trademark: SKF
• Origin: China
• HS Code: 8483200000
• Production Capacity: 200000set/Year
• Package Size: 10.00cm * 15.00cm * 4.00cm
• Package Gross Weight: 2.200kg

Product Description

Product Description

Axial-radial cylindrical super-precision roller bearing

Axial-radial cylindrical super-precision roller bearings can accommodate radial loads, axial loads in both directions and moment loads, whether acting singly, or simultaneously, in any combination. With high running accuracy, high load capacity and rigidity, SKF super-precision axial radial cylindrical roller bearings are ideal for rotary tables, indexing heads, and multi spindle heads. The bearing minimizes noise, vibration and heat generation.

• Accommodate radial and axial loads in both directions
• Designed for low-medium speed performance
• Handle moment loads
• Close tolerances
• Minimizing noise, vibration and heat generation

 

Product Parameters

 

Dimensions

d	80 mm	Bore diameter
D	146 mm	Outside diameter
H	35 mm	Height
d1	130 mm	Shoulder diameter inner ring - large shoulder
C	12 mm	Outer ring (housing washer) width
H1	23.35 mm	Distance
J	92 mm	Inner ring (shaft/locating washer) hole pitch circle diameter
J1	138 mm	Outer ring (housing washer) hole pitch circle diameter
N	5.6 mm	Inner ring (shaft/locating washer) through hole
N1	10 mm	Inner ring (shaft washer) sinkhole
N2	4.6 mm	Outer ring (housing washer) through hole
a	4 mm	Inner ring (shaft washer) sinkhole depth
r1	min.0.3 mm	Outer ring (housing washer) chamfer dimension
r2	min.0.3 mm	Chamfer dimension

Calculation data

Basic dynamic load rating - radial direction	C	55 kN
Basic static load rating - radial direction	C0	102 kN
Basic dynamic load rating - axial direction	C	37.5 kN
Basic static load rating - axial direction	C0	200 kN
Attainable speed for grease lubrication		350 r/min
Attainable speed for oil-air lubrication		700 r/min
Axial preload		1.3 kN
Axial unloading force		2.8 kN
Frictional moment	CRL	3 N·m
Axial stiffness for preload A (sets of two brgs back-to-back or face-to-face)		5 kN/µm
Axial stiffness for preload B (sets of two brgs back-to-back or face-to-face)		3.1 kN/µm
Moment stiffness		7 kN·m/mrad

Rotary table

Guideline rotary table diameter

200 mm

Mounting information

RETAINING BOLTS

Size		M5
Number of bolts		2
Angle between bolts		180 °

REMOVAL THREADS

Size	G	M5
Number of threads		3
Angle between threads		120 °

REQUIRED ATTACHMENT BOLTS, SHAFT

Bolt size		M5
Pitch	α	30 °
Number of bolts		10
Number of bolts omitted at retaining bolts position		2, 180° apart
Tightening torque (Bolt grade 10.9)		8.5 N·m

REQUIRED ATTACHMENT BOLTS, HOUSING

Bolt size		M4
Pitch	α	30 °
Number of bolts		9
Number of bolts omitted at removal thread position		3, 120° apart
Tightening torque (Bolt grade 10.9)		4.5 N·m

 

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.