Basic Info.
Model NO.
RA5008 RA6008 RA7008
Standard or Nonstandard
Standard
Feature
High Speed, Vacuum, Antimagnetic, Cold-Resistant, Corrosion-Resistant, Heat-Resistant
Rolling-Element Number
Single-Row
Roller Type
Straight Raceway
Bearing Type
Cross Roller Bearing
Package
Kraft Paper/Single Box+Nylon Bag+Carton/Pallet
Chamfer
Light Chamfer or Black Chamfer
Precision Rating
P0/P6/P5/P4/P2
Applications
Automoive Industry, Heavy Equipment, Gearbox
Transport
by Land / Sea / Air
Trademark
JDZ or OEM Service
Transport Package
Cartons+Pallets
Product Description
Model | ERBS5008 (RA5008) |
Inner Diameter d(mm) | 50 |
Tolerance δd(mm) | 0/-0.015 |
Outer Diameter D(mm) | 66 |
Tolerance δD(mm) | 0/-0.013 |
Inner ring width B(mm) | 8 |
Tolerance δB(mm) | 0/-0.120 |
Outer ring width B1(mm) | 8 |
Tolerance δB1(mm) | 0/-0.120 |
Pitch diameter Dpw(mm) | 57 |
Inner ring shaft shoulder ds(mm) | 53.5 |
Outer ring shaft shoulder Dh(mm) | 60.5 |
Basic static load rating Cor(KN) | 7.19 |
Basic dynamic load rating Cr(KN) | 5.1 |
Inner ring runout P5 Kia/Sia(mm) | 0.013 |
Inner ring runout P4 Kia/Sia(mm) | 0.010 |
Preload CC0(mm) | 0/-0.008 |
Positive clearance C0(mm) | 0/0.015 |
Weight m(Kg) | 0.08 |
Material | GCR15/GCR15SiMn |
Accuracy Class | P5/P4/P2 |
Lubrication Type | Grease lubrication |
Rotating Part | Inner Ring Rotation |
Bearing Direction | Axial and Radial Multi-directional |
Bearing Structure | Outer Ring Split Type |
RA5008 Cross Roller Bearing
RA5008 Cross Roller Bearing belongs to the thinnest wall crossed roller bearing. Same as RB series, its inner ring is integrated, the outer ring is separable. Because of its light and compact design, it is widely used in motors, precision machines, industrial robots, medical RA5008 Cross Roller Bearing
RA5008 Cross Roller Bearing belongs to the thinnest wall crossed roller bearing. Same as RB series, its inner ring is integrated, the outer ring is separable. Because of its light and compact design, it is widely used in motors, precision machines, industrial robots, medical equipment, etc.
equipment, etc. Crossed Roller Bearings:
Cross Roller Bearings are a type of roller bearing with high rotation accuracy capable of bearing loads in every direction. Because it has orthogonally arranged cylindrical rollers, it can bear loads in every direction. This lets one crossed roller bearing replace more than one ball bearing, thus saving the space required by ball bearings, lowering the associated material costs.
Key benefits of cross roller bearings:
High load capacity: cross roller bearings are designed to heavy loads in compact spaces
Unique Design: rollers arranged perpendicular to the axis of rotation which ensures smooth and precise operation through rigidity and accuracy
Durability: highly durable and built to last minimizing downtime and maintenance costs
Applications:
Crossed roller bearings are commonly used in precision machinery, robotics, CNC machines, and semiconductor manufacturing equipment.
Types Cross Roller Bearings:
1. RA series
2. RB series
3. RU series
4. SX series
5. XU series
6. XSU series
7. XR/JXR series
8. CRBF series
9. CRBS series
10.CRBH series
11.CRBT series
Technical parameter of precision cross cylindrical roller bearings :
RA series:
| TYPE | Inner diameter | Outer diameter | Pitch diameter | Height | Chamfer | Shoulder size | | Basic rated load(Radial) | | Weight |
|---|
| | d | D | Dpw | B | r | ds | Dh | Cr Kn | Cor Kn | KG |
| RA 5008 | 50 | 66 | 57 | 8 | 0.5 | 53.5 | 60.5 | 5.1 | 7.19 | 0.08 |
| RA 6008 | 60 | 76 | 67 | 8 | 0.5 | 63.5 | 70.5 | 5.68 | 8.68 | 0.09 |
| RA 7008 | 70 | 86 | 77 | 8 | 0.5 | 73.5 | 80.5 | 5.98 | 9.8 | 0.1 |
| RA 8008 | 80 | 96 | 87 | 8 | 0.5 | 83.5 | 90.5 | 6.37 | 11.3 | 0.11 |
| RA 9008 | 90 | 106 | 97 | 8 | 0.5 | 93.5 | 100.5 | 6.76 | 12.4 | 0.12 |
| RA 10008 | 100 | 116 | 107 | 8 | 0.5 | 103.5 | 110.5 | 7.15 | 13.9 | 0.14 |
| RA 11008 | 110 | 126 | 117 | 8 | 0.5 | 113.5 | 120.5 | 7.45 | 15 | 0.15 |
| RA 12008 | 120 | 136 | 127 | 8 | 0.5 | 123.5 | 130.5 | 7.84 | 16.5 | 0.17 |
| RA 13008 | 130 | 146 | 137 | 8 | 0.5 | 133.5 | 140.5 | 7.94 | 17.6 | 0.18 |
| RA 14008 | 140 | 156 | 147 | 8 | 0.5 | 143.5 | 150.5 | 8.33 | 19.1 | 0.19 |
| RA 15008 | 150 | 166 | 157 | 8 | 0.5 | 153.5 | 160.5 | 8.82 | 20.6 | 0.2 |
| RA 16013 | 160 | 186 | 172 | 13 | 0.8 | 165 | 179 | 23.3 | 44.9 | 0.59 |
| RA 17013 | 170 | 196 | 182 | 13 | 0.8 | 175 | 189 | 23.5 | 46.5 | 0.64 |
| RA 18013 | 180 | 206 | 192 | 13 | 0.8 | 185 | 199 | 24.5 | 49.8 | 0.68 |
| RA 19013 | 190 | 216 | 202 | 13 | 0.8 | 195 | 209 | 24.9 | 51.5 | 0.69 |
| RA 20013 | 200 | 226 | 212 | 13 | 0.8 | 205 | 219 | 25.8 | 54.7 | 0.71 |
RB series:
| Model No. | Outer dimension (mm) | Installation dimension (mm) | Rated load (Kn) | Weight |
| d | D | B/C | Rmin | da | Da | C | C0 | kg |
| RB2008 | 20 | 36 | 8 | 0.5 | 23.5 | 30.5 | 3.23 | 3.1 | 0.04 |
| RB2508 | 25 | 41 | 8 | 0.5 | 28.5 | 35.5 | 3.63 | 3.83 | 0.05 |
| RB3010 | 30 | 55 | 10 | 0.6 | 37 | 47 | 7.35 | 8.36 | 0.12 |
| RB3510 | 35 | 60 | 10 | 0.6 | 41 | 51.5 | 7.64 | 9.12 | 0.13 |
| RB4010 | 40 | 65 | 10 | 0.6 | 47.5 | 57.5 | 8.33 | 10.6 | 0.16 |
| RB4510 | 45 | 70 | 10 | 0.6 | 51 | 61.5 | 8.62 | 11.3 | 0.17 |
| RB5013 | 50 | 80 | 13 | 0.6 | 57.4 | 72 | 16.7 | 20.9 | 0.27 |
| RB6013 | 60 | 90 | 13 | 0.6 | 68 | 82 | 18 | 24.3 | 0.3 |
| RB7013 | 70 | 100 | 13 | 0.6 | 78 | 92 | 19.4 | 27.7 | 0.35 |
| RB8016 | 80 | 120 | 16 | 0.6 | 91 | 111 | 30.1 | 42.1 | 0.7 |
| RB9016 | 90 | 130 | 16 | 1 | 98 | 118 | 31.4 | 45.3 | 0.75 |
| RB10016 | 100 | 140 | 16 | 1 | 109 | 129 | 31.7 | 48.6 | 0.83 |
| RB10020 | 100 | 150 | 20 | 1 | 113 | 133 | 33.1 | 50.9 | 1.45 |
| RB11012 | 110 | 135 | 12 | 0.6 | 117 | 127 | 12.5 | 24.1 | 0.4 |
| RB11015 | 110 | 145 | 15 | 0.6 | 122 | 136 | 23.7 | 41.5 | 0.75 |
| RB11020 | 110 | 160 | 20 | 1 | 120 | 143 | 34 | 54 | 1.56 |
| RB12016 | 120 | 150 | 16 | 0.6 | 127 | 141 | 24.2 | 43.2 | 0.72 |
| RB12025 | 120 | 180 | 25 | 1.5 | 133 | 164 | 66.9 | 100 | 2.62 |
| RB13015 | 130 | 160 | 15 | 0.6 | 137 | 152 | 25 | 46.7 | 0.72 |
| RB13025 | 130 | 190 | 25 | 1.5 | 143 | 174 | 69.5 | 107 | 2.82 |
| RB14016 | 140 | 175 | 16 | 1 | 147 | 162 | 25.9 | 50.1 | 1 |
| RB14025 | 140 | 200 | 25 | 1.5 | 154 | 185 | 74.8 | 121 | 2.96 |
| RB15013 | 150 | 180 | 13 | 0.6 | 157 | 172 | 27 | 53.5 | 0.68 |
| RB15025 | 150 | 210 | 25 | 1.5 | 164 | 194 | 76.8 | 128 | 3.16 |
| RB15030 | 150 | 230 | 30 | 1.5 | 173 | 211 | 100 | 156 | 5.3 |
| RB16025 | 160 | 220 | 25 | 1.5 | 173 | 204 | 81.7 | 135 | 3.14 |
| RB17020 | 170 | 220 | 20 | 1.5 | 184 | 198 | 29 | 62.1 | 2.21 |
| RB18025 | 180 | 240 | 25 | 1.5 | 195 | 225 | 84 | 143 | 3.44 |
| RB19025 | 190 | 240 | 25 | 1 | 202 | 222 | 41.7 | 82.9 | 2.99 |
| RB20025 | 200 | 260 | 25 | 2 | 215 | 245 | 84.2 | 157 | 4 |
| RB20030 | 200 | 280 | 30 | 2 | 221 | 258 | 114 | 200 | 6.7 |
| RB20035 | 200 | 295 | 35 | 2 | 225 | 270 | 151 | 252 | 9.6 |
| RB22025 | 220 | 280 | 25 | 2 | 235 | 265 | 92.3 | 171 | 4.1 |
| RB24025 | 240 | 300 | 25 | 2.5 | 256 | 281 | 68.3 | 145 | 4.5 |
| RB25025 | 250 | 310 | 25 | 2.5 | 265 | 290 | 69.3 | 150 | 5 |
| RB25030 | 250 | 330 | 30 | 2.5 | 269 | 306 | 126 | 244 | 8.1 |
| RB25040 | 250 | 355 | 40 | 2.5 | 275 | 326 | 195 | 348 | 14.8 |
| RB30025 | 300 | 360 | 25 | 2.5 | 315 | 340 | 76.3 | 178 | 5.9 |
| RB30035 | 300 | 395 | 35 | 2.5 | 322 | 368 | 183 | 367 | 13.4 |
| RB30040 | 300 | 405 | 40 | 2.5 | 326 | 377 | 212 | 409 | 17.2 |
| RB35020 | 350 | 400 | 20 | 2.5 | 363 | 383 | 54.1 | 143 | 3.9 |
| RB40035 | 400 | 480 | 35 | 2.5 | 422 | 459 | 156 | 370 | 14.5 |
| RB40040 | 400 | 510 | 40 | 2.5 | 428 | 479 | 241 | 531 | 23.5 |
| RB45025 | 450 | 500 | 25 | 1 | 464 | 484 | 61.7 | 182 | 6.6 |
| RB50025 | 500 | 550 | 25 | 1 | 514 | 534 | 65.5 | 201 | 7.3 |
| RB50040 | 500 | 600 | 40 | 2.5 | 526 | 572 | 239 | 607 | 26 |
| RB50050 | 500 | 625 | 50 | 2.5 | 536 | 587 | 267 | 653 | 41.7 |
| RB60040 | 600 | 700 | 40 | 3 | 627 | 673 | 264 | 721 | 29 |
| RB70045 | 700 | 815 | 45 | 3 | 731 | 777 | 281 | 836 | 46 |
| RB80070 | 800 | 950 | 70 | 4 | 836 | 900 | 468 | 1330 | 105 |
| RB90070 | 900 | 1050 | 70 | 4 | 937 | 1001 | 494 | 1490 | 120 |
| RB1000110 | 1000 | 1250 | 110 | 5 | 1057 | 1171 | 1220 | 3220 | 360 |
| RB1250110 | 1250 | 1500 | 110 | 5 | 1308 | 1423 | 1350 | 3970 | 440 |
RU series:
Designation | Size | Shoulder dimension | Basic Load rating | Quality |
Model | d | D | Dpw | B | rmin | ds | Dh | Cr
kN | Cor
kN | Kg |
RU28 | 10 | 52 | 27.3 | 8 | 0.3 | 24 | 29.5 | 29 | 24 | 0.12 |
RU42 | 20 | 70 | 41.5 | 12 | 0.6 | 37 | 47 | 7.35 | 8.35 | 0.29 |
RU66 | 35 | 95 | 66 | 15 | 0.6 | 59 | 74 | 17.5 | 22.3 | 0.62 |
RU85 | 55 | 120 | 85 | 15 | 0.6 | 79 | 93 | 20.3 | 29.5 | 1 |
RU124(G)
RU124X | 80 | 165 | 124 | 22 | 1 | 114 | 134 | 33.1 | 50.9 | 2.6 |
RU148(G)
RU148X | 90 | 210 | 148 | 25 | 1.5 | 133 | 162 | 49.1 | 76.8 | 4.9 |
RU178(G)
RU178X | 115 | 240 | 178 | 28 | 1.5 | 161 | 195 | 80.3 | 135 | 6.8 |
RU228(G)
RU228X | 160 | 295 | 227.5 | 35 | 2 | 208 | 246 | 104 | 173 | 11.4 |
RU297(G)
RU297X | 210 | 380 | 297.3 | 40 | 2.5 | 272 | 320 | 156 | 281 | 21.3 |
RU445(G)
RU445X | 350 | 540 | 445.4 | 45 | 2.5 | 417 | 473 | 222 | 473 | 3504 |
Packing:
Please contact us for more pictures of different packing.Universal Packing | Without any logo on bearings or packing. |
JDZ Packing | With our brand JDZ on bearings and packing. |
Customized Packing | Depends on buyer's requirements. |
Original Brand Packing | Bearing and packing are both original. Please contact us for pictures. |
100% Quality inspection to ensure the bearings are with good quality before shipping.
Shandong Hongye Precision Bearing Co.,Ltd. was founded by Hebei Defa Bearing Co.,Ltd, factory is located in Hebei province, China.
We are a bearing manufacturer integrating the research, development and sales of bearings, with a floor area of 18,000 square meters and a plant area of 8,800 square meters. Equipped with modern production equipment and advanced detection instruments.
We can provide all types bearings and OEM service according to customers' requirements.
Our products are widely used in the automobile, agricultural, textile production, mining, printing and packing industries, in addition to various applications at airports, in air-conditioning systems, conveying devices, ships ad so on. Our products are being exported to more than 50 countries and regions overseas including Singapore, Thailand, Iran, Turkey, Poland, Italy, England, France, Russia, Germany, the United States, Australia, Argentina, Brazil as well as other countries and regions all over the world.
We are a trusted and reliable bearing supplier, choose us to be your good partner!
1. Q: Are you trading company or manufacturer ?
A: We have our own factory , our type is factory + trade.
2. Q: Could you accept OEM and customize?
A: Yes, we can customize products according to your sample or drawing.
3. Q: How long is your delivery time?
A: If stock, within 7 days to ship or based on your order quantity.
4. Q: Could you supply sample for free?
A: Yes, we can offer the sample for free,do you mind to buy a "ticket" for her?
More details, please contact with us. Thanks for your time!
Address:
Room 702, No. 6, China Railway Financial Intelligence Center, No. 59 Industrial South Road, High-tech District, Jinan City, Shandong Province
Business Type:
Manufacturer/Factory
Business Range:
Auto, Motorcycle Parts & Accessories, Industrial Equipment & Components
Management System Certification:
IATF16949
Company Introduction:
Shandong Hongye Precision Bearing Co., Ltd was founded by Hebei Defa bearing manufacturing Co., Ltd., located in Hebei province. We are a bearing manufacturer integrating the research, development and sales of bearings, with a floor area of 18, 000 square meters and a plant area of 8, 800 square meters. Equipped with modern production equipment and advanced detection instruments, Our own Brand "JDZ". Specializing in designing and manufacturing various types of bearings including tapered roller bearings, deep groove ball bearings, spherical insert bearings, angular contact ball bearings, thrust ball bearings, wheel hub bearing, Universal Joint bearing, self-aligning ball bearings as well as plastic bearings, ceramic bearing and so on. We could also provide OEM service according to our customers′ requirements.
Our products are widely used in the agricultural, textile production, mining, automobiles, printing and packing industries, in addition to various applications at airports, in air-conditioning systems, conveying devices, ships ad so on. Our products are being exported to more than 50 countries and regions overseas including Japan, South Korea, Italy, Poland, Iran, France, Germany, the United States, Singapore, Thailand, Russia, Turkey, England, Australia, Argentina, Brazil as well as other countries and regions all over the world.
Adhering to the business philosophy of "Diligent Development, Sincere Service, Meticulous Manufacturing and Brand Strategy", the company works with customers at home and abroad with an honesty and fair principle. The company has successively passed the certifications of ISO9001: 2008 and IATF 16949: 2016 Quality Management System and ISO14001: 2004 Environment Management System. The company adopts detailed quality control measures to enhance products and services, in order to provide global customers with high-quality products and service.
