XR Series Crossed Tapered Roller Bearings

The design of XR series crossed tapered roller bearings can provide higher rotation accuracy and rigidity in a smaller space and greatly save material costs. This type of bearing is to install two sets of bearing raceways and rollers crosswise at right angles. The adjacent rollers face in opposite directions. A spacer is installed between the rollers and the rollers are also equipped with support shims.

XR Series Crossed Tapered Roller Bearings

The design of XR series crossed tapered roller bearings can provide higher rotation accuracy and rigidity in a smaller space and significantly save material costs. This type of bearing is to install two sets of bearing raceways and rollers crosswise at right angles. The adjacent rollers face in opposite directions. A spacer is established between the rollers, which are also equipped with support shims, which makes the two half rows of rollers fit into the same space. The included angle and tapered geometry of the bearing make the effective span of the bearing several times larger than the actual width of the bearing itself.

XR series crossed tapered roller bearings are similar to RB series crossed cylindrical roller bearings in structure. XR series has two separable outer rings or inner rings.XR series crossed tapered roller bearings are suitable for high-speed machine tool applications, such as vertical boring machines and grinders. It is also particularly suitable for many types of equipment with limited space and high requirements for rotation accuracy.

Technical data

Model Number Main dimensions Basic dynamic load rating Limiting speed (Oil) r/m Weight (Kg)
Inner ring
(mm)
Outer ring D(mm) Width B(mm) Chamfer r(min) Radial Cr(KN) Axial Ca(KN)
XR496051 203.2 279.4 31.75 1.5 41 49.2 800 6.5
XR678052 330.2 457.2 63.5 3 80 98.4 620 35
XR766051 457.2 609.6 63.5 3 106 133 520 51
XR820060 580 760 80 5 106 209 300 100
XR855053 685.8 914.4 79.375 3 180 224 260 150
XR882055 901.7 1117.6 82.55 3 225 297 200 185
XR889058 1028.7 1327.15 114.3 3 283 374 160 400
XR897051 1549.4 1828.8 101.6 3 326 489 80 500
XR637050 300 400 37 1.5 47.2 60 720 13
XR652050 310 425 45 2.5 61.6 76.5 640 20
XR699050 370 495 50 3 70.2 89.2 600 30

XR Series Crossed Tapered Bearing characteristics

1. High precision; High rigidity: these series bearings are with preload; High load capacity: can support radial, axial, and tilting loads.

2. High speed: rollers roll in the raceway, so the limited rate of crossed taper roller bearings is higher than that of crossed cylindrical roller bearings.

3. Low friction: the frictional torque of crossed tapered bearings is much lower than that of crossed cylindrical roller bearings.

Installation Procedure

1. Thoroughly clean the housing and other parts to be installed, and check to determine if deburring is required.

2. Since the Crossed tapered Roller bearing is a thin-wall bearing type and therefore tends to misalign when installed, in case of this situation, gradually drive the product into the housing or onto the shaft by gently hitting it with a plastic hammer, while keeping the product horizontal. Taking care, continue to hammer until it fully contacts the reference surface.

3. Place the presser flange onto the crossed Roller bearing. Rock the flange several times to match the bolt holes.

4. Insert the presser bolts into the holes. Manually turn the bolts and ensure they do not display skewing caused by the misalignment of the holes.

Application of XR Series Crossed Tapered Bearing

This makes the XR Series crossed tapered roller bearing suited to applications where space is limited or the lowest possible center of gravity of a rotating mass is required and high speed. And withstand high overturning moments, for example, accuracy machine tools circular division rotary table, vertical and horizontal boring machine, vertical grinder, rotary surface grinding machine, vertical lathe, large-scale gear hobbing machine, turret, large telescope (radio telescope and optical telescope), rotation camera, industry robot.

Company Information

We are a professional bearing exporter in China, producing many different types and sizes of bearings. We can provide you with excellent service in a wide range of bearings with world-class quality, such as deep groove ball bearings, spherical roller bearings, self-aligning ball bearings, cylindrical roller bearings, tapered roller bearings, angular contact ball bearings, needle roller bearings, crossed roller bearings, pillow block bearing, slewing bearings, plain bearings, etc. Bearings can also provide OEM services according to customer requirements. Our bearings products are widely used in various applications, such as port, ship, vehicle, mining, engineering, lifting, environmental protection, oil, chemicals, light industry, metallurgical machinery, the military, etc. Products are exported to the United States, Germany, Japan, Spain, Canada, Italy, France, Finland, South Korea, India, Singapore, Brazil, Australia, and other countries. If you need crossed roller bearings, please get in touch with us.

FAQ

Q. Are you a trading company or a manufacturer?

A: We are a manufacturer.

Q: How long is your crossed roller bearings delivery time?

A: Generally, it is 3-5 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, according to quantity.

Q: Do you provide samples for crossed roller bearings? Is it free or extra?

A: Yes, we could offer the sample for free but do not pay the freight cost.

Q: Could you accept OEM and customize crossed roller bearings?

A: We can customize it for you according to the sample or drawing.

Q: What are your terms of payment?

A: Payment<=1000USD, 100% in advance.Payment>=1000USD, 30% T/T in advance ,pay the balance before shippment.

Q: Will you check these products before shipment?

A: Our factory QC Process System will strictly inspect products before shipment. We have a professional QC team.

Q: What will we do if you are unsatisfied with the product?

A: If you have any abnormalities, please get in touch with us for the first time, and we will immediately process them.

If you need crossed roller bearings or any models of bearings, please contact me!

Product Quick Detail:

  • Standard and non-standard available
  • With high quality and competitive price
  • Prompt delivery
  • Packing as per customer’s demand.

We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

pruduct quality report

Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages