| Composition Derailleur bearings are important sections in the bike derailleur system, used to support and enable smooth rotation of the derailleur pulleys. They bear the load of the derailleur and the tension of the chain, playing a key part in reducing friction and ensuring smooth gear shifting.  |  FeaturesGood derailleur bearings offer stable gear shifting performance, reduce energy loss, and improve cycling efficiency. They should equip with durability, low friction, high load capacity, and excellent smooth rotation characteristics. |
Transmission bearings are marjorly used in bicycle transmission systems.
Transmission bearings bear the tension of the chain and the load of the transmission during gear shifting, ensuring the proper operation of the transmission.
| Derailleur Bearings Series | ||||
| Bearing No. | Basic Dimensions | Weight(kg) | ||
| d(mm) | D(mm) | B(mm) | ||
| 696 ZZ | 6 | 15 | 5 | 0.00286 |
| 606 ZZ | 6 | 17 | 6 | 0.00584 |
| MR137 ZZ | 7 | 13 | 4 | 0.00123 |
| MR147 ZZ | 7 | 14 | 5 | 0.00233 |
| 687 ZZ | 7 | 15 | 5 | 0.00278 |
| 697 ZZ | 7 | 17 | 5 | 0.00505 |
| MR128 ZZ | 8 | 12 | 3.5 | 0.00112 |
| MR148 ZZ | 8 | 14 | 4 | 0.00203 |
| 688 ZZ | 8 | 16 | 5 | 0.00332 |
| 600 Series | |||||||||
| Bearing No. | Basic Dimensions | Weight(kg) | Designation | ||||||
| d(mm) | D(mm) | B(mm) | B1(mm) | ||||||
| 603 | 3 | 9 | 3 | 5 | 0.00087 | 603 Z | 603 ZZ | ||
| 623 | 3 | 10 | 4 | 4 | 0.00165 | 623 Z | 623 ZZ | ||
| 674 | 4 | 7 | 2 | 2.5 | 0.00022 | 674 Z | 674 ZZ | ||
| 684 | 4 | 9 | 2.5 | 4 | 0.00063 | 684 Z | 684 ZZ | ||
| 694 | 4 | 11 | 4 | 4 | 0.00017 | 694 Z | 694 ZZ | ||
| 604 | 4 | 12 | 4 | 4 | 0.00250 | 604 Z | 604 ZZ | 604 RS | 604 2RS |
| 624 | 4 | 13 | 5 | 5 | 0.00303 | 624 Z | 624 ZZ | 624 RS | 624 2RS |
| 634 | 4 | 16 | 5 | 5 | 0.00524 | 634 Z | 634 ZZ | 634 RS | 634 2RS |
| 675 | 5 | 8 | 2 | 2.5 | 0.00026 | 675 Z | 675 ZZ | ||
| 685 | 5 | 11 | 3 | 5 | 0.00120 | 685 Z | 685 ZZ | 685 RS | 685 2RS |
| 695 | 5 | 13 | 4 | 4 | 0.00245 | 695 Z | 695 ZZ | 695 RS | 695 2RS |
| 605 | 5 | 14 | 5 | 5 | 0.00354 | 605 Z | 605 ZZ | 605 RS | 605 2RS |
| 625 | 5 | 16 | 5 | 5 | 0.00495 | 625 Z | 625 ZZ | 625 RS | 625 2RS |
| 686 | 6 | 13 | 3.5 | 5 | 0.00191 | 686 Z | 686 ZZ | 686 RS | 686 2RS |
| 696 | 6 | 15 | 5 | 5 | 0.00388 | 696 Z | 696 ZZ | 696 RS | 696 2RS |
| 606 | 6 | 17 | 6 | 6 | 0.00597 | 606 Z | 606 ZZ | 606 RS | 606 2RS |
| 626 | 6 | 19 | 6 | 6 | 0.00815 | 626 Z | 626 ZZ | 626 RS | 626 2RS |
| 687 | 7 | 14 | 3.5 | 5 | 0.00210 | 687 Z | 687 ZZ | 687 RS | 687 2RS |
| 697 | 7 | 17 | 5 | 5 | 0.00526 | 697 Z | 697 ZZ | 697 RS | 697 2RS |
| 607 | 7 | 19 | 6 | 6 | 0.00767 | 607 Z | 607 ZZ | 607 RS | 607 2RS |
| 627 | 7 | 22 | 7 | 7 | 0.01270 | 627 Z | 627 ZZ | 627 RS | 627 2RS |
| 637 | 7 | 26 | 9 | 9 | 0.02400 | 637 Z | 637 ZZ | 637 RS | 637 2RS |
| 678 | 8 | 12 | 2.5 | 3.5 | 0.00071 | 678 Z | 678 ZZ | ||
| 688 | 8 | 16 | 4 | 5 | 0.00330 | 688 Z | 688 ZZ | 688 RS | 688 2RS |
| 698 | 8 | 19 | 6 | 6 | 0.00723 | 698 Z | 698 ZZ | 698 RS | 698 2RS |
| 608 | 8 | 22 | 7 | 7 | 0.01210 | 608 Z | 608 ZZ | 608 RS | 608 2RS |
| 628 | 8 | 24 | 8 | 8 | 0.01720 | 628 Z | 628 ZZ | 628 RS | 628 2RS |
| 679 | 9 | 14 | 3 | 4.5 | 0.00305 | 679 Z | 679 ZZ | 679 RS | 679 2RS |
| 689 | 9 | 17 | 4 | 5 | 0.00353 | 689 Z | 689 ZZ | 689 RS | 689 2RS |
| 699 | 9 | 20 | 6 | 6 | 0.00845 | 699 Z | 699 ZZ | 699 RS | 699 2RS |
| 609 | 9 | 24 | 7 | 7 | 0.01450 | 609 Z | 609 ZZ | 609 RS | 609 2RS |
| 629 | 9 | 26 | 8 | 8 | 0.01950 | 629 Z | 629 ZZ | 629 RS | 629 2RS |
| 639 | 9 | 30 | 10 | 10 | 0.03650 | 639 Z | 639 ZZ | 639 RS | 639 2RS |
General delivery for bearings is 30 days while the bearing units 60 days, customized and urgent demand need specifically defined.
Industrial packing and individual box are usually happen during our business.
Standard industrial regulation is our baseline, advanced technology and scientific managemenet make us competitive.
Our team will together offer professional and efficient service.
ABOUT COMPANY
We are manufacturer; export bearings for a long time and globally.
Our main product - BEARING, PILLOW BLOCK, OTHER POWER TRANSMISSION...
SAMPLES
Qty: 1-10 PCS are available.
Free samples - regarding Model No., material, and quantity. Some require customers to pay both sample charges and shipping costs.
Tailor-made quality sample could be sent before big quantity delivery.
CUSTOMIZED
Yes, we have OEM/ODM service.
MOQ
10 PCS for standard bearings.
3000 PCS for customization (will further check as per specific requirement)
LEAD TIME
Bearings and its components 30 days
Bearing units 60 days
PACKING
Plastic tube->Plastic bag->Carton->Closed pallet(Special designed available)
PAYMENT
General 30% T/T in advance, 70% balance at sight.
AFTER-SALE SERVICE
12 months, please provide photos and items for us to solve and improve.
SUPPORT
Please visit our bearings website, we strongly encourage that you can communicate with us through email, thanks!
| Material available for 606 | GCr15/ceramic/stainless steel... |
| Products in the same type we offer | Deep groove ball bearings/miniature bearings/thin wall bearings/thrust ball bearings/inch bearings |
| Products we have for bicycle parts | Motor bearings(6708-2RS)/hub bearings(6800-2RS)/frames bearings(6001-2RS)/headset bearings(ACB30418H8-45/45)/bottom bracket bearings(6805-2RS)/pedal bearings(686-ZZ) |
