30.5X41.8X8mm 45/45 Degree Th-870 Inner Ring with Step Bike Headset Ball Bearing

• Contact Angle: 45°
• Aligning: Non-Aligning Bearing
• Separated: Unseparated
• Rows Number: Single
• Load Direction: Radial Bearing
• Material: Bearing Steel
• Model NO.: TH-870
• Transport Package: Industry Packing
• Specification: TH-870
• Trademark: CSZBTR
• Origin: China
• HS Code: 8482102000
• Production Capacity: 10000

Product Description

30.5x41.8x8mm 45/45 degree TH-870 Inner ring with step bike headset ball bearing

 

Bicycle Headset Angular Contact Bearing

Bicycle Headset Angular Contact Bearing(ACB) is application for 1", 1-1/8", 1-1/4" and 1-1/2" internal & semi-intergrated headsets.

 

Bicycle headset bearing Part NO.:
MH-P03 : 30.15x41x6.5 mm, 45°/45°, double-sealed
MH-P03K : 30.15x41x6.5 mm, 36°/45°, double-sealed
MH-P08: 30.15x41.8x6.5 mm, 45°/45°, double-sealed
MH-P08H7: 30.15x41.8x7 mm, 45°/45°, double-sealed
MH-P08H8 : 30.5x41.8x8 mm, 45°/45°, single-sealed
MH-P08F: 30.15x41.8x8 mm, 45°/45°, single-sealed
MH-P04: 30.15x39x6.5 mm, 45°/45°, double-sealed
MH-P09K : 27.15x38x6.5 mm, 36°/45°, double-sealed
MH-P16 : 40x52x7 mm, 45°/45°, double-sealed
MH-P16H8 : 40x52x8 mm, 45°/45°, double-sealed
MH-P17 : 34.1x46.8x7 mm, 45°/45°, double-sealed
MH-P21 : 37x49x7 mm, 45°/45°, double-sealed
MH-P22 : 34.1x46.9x7 mm, 45°/45°, double-sealed
ACB518K : 40x51.8x8 mm, 36°/45°, single-sealed
ACB25K : 40x52x6.5 36°/45°,double-sealed
T808 : 40x52x12 45°/45°,double-sealed

Race material : chrome steel 100Cr6 / SAE52100.
Ball material : chrome steel 100Cr6 / SAE52100.
Cage/retainer : Nylon PA66+25%GF.
Seal : rubber seal, double-sealed
Lubrication : Mobil XHP-222 or HTHS #2.
For other bike bearings,please contact with us

 

Note:
If you need other model bearing but did not find it on my store, Please contact me, thank you!

Bearing online can buy have spot can place an order (to support a large number of wholesale), if there are special requirements or higher quality, Please contact me!

For enterprises to provide professional supporting bearing, welcome consultation discussion!

Products Show

Bicycle Headset Angular Contact Bearing
Bearing No.	Internal diameter	Outside diameter	Height	Chamfer º	Material
ACB41K	30.15	41	6.5	36°/45°	chrome steel
ACB39	30.15	39	6.5	45°/45°	chrome steel
ACB41H7	30.15	41	7	45°/45°	chrome steel
ACB418	30.15	41.8	6.5	45°/45°	chrome steel
ACB418H7	30.15	41.8	7	45°/45°	chrome steel
ACB418H8	30.6	41.8	8	45°/45°	chrome steel
ACB418H8F	30.6	41.8	8	45°/45°	chrome steel
ACB44	30.15	44	8	45°/45°	chrome steel
ACB1645	40	52	7	45°/45°	chrome steel
ACB52	40	52	8	45°/45°	chrome steel
ACB1645/12	40	52	12	45°/45°	chrome steel
ACB518K	40	51.8	8	36°/45°	chrome steel
ACB25K	40	52	6.2	36°/45°	chrome steel
ACB845H8	30.5	41.8	8	45°/45°	chrome steel
MH-P03	30.15	41	6.5	45°/45°	chrome steel
MH-P03K	30.15	41	6.5	36°/45°	chrome steel
MH-P08	30.15	41.8	6.5	45°/45°	chrome steel
MH-P08H7	30.15	41.8	7	45°/45°	chrome steel
MH-P08H8	30.15	41.8	8	45°/45°	chrome steel
MH-P08F	30.15	41.8	8	45°/45°	chrome steel
MH-P04	30.15	39	6.5	45°/45°	chrome steel
MH-P09	27.15	38	6.3	45°/45°	chrome steel
MH-P09K	27.15	38	6.5	36°/45°	chrome steel
MH-P16	40	52	7	45°/45°	chrome steel
MH-P17	34.1	46.8	7	45°/45°	chrome steel
MH-P21	37	49	7	45°/45°	chrome steel
MH-P22	34.1	46.9	7	45°/45°	chrome steel

All about Headset Bearings:

1. How many different types of bearings are used in the modern day headset?

Answer: There are at least 6 different kinds of bearings used in the bicycle headset. They include; radial bearings, thrust bearings and angular contact bearings. These three types of bearings all use ball bearings. The second category of bearings is the roller bearings which include the standard roller bearing and the tapered roller bearing. Both of these use cylindrical rollers.

2. There are many different types of bearings. Which one is best for the bicycle headset and why?

Answer: Angular contact bearings are the most appropriate bearing for most headset applications. The primary reason is due to the fact that it is very efficient at dealing with the angular force that is exerted upon it. Whereas most deep groove industrial bearings are very efficient at dealing with vertical or horizontal loads, the pressing angle associated with the bicycle headset is much more angular.

Most of headset use big diameter axle to increase the strength. As the limited space, the bearing should have a big bore with thin wall of inner ring and outer ring to insert in. ACB has a primary advantage that reinforces axial loads over than deep groove ball bearings.

 

 

 

 

 

 

 

 

 

 

 

 

Our Service

Service

1.Pre-Service:24*7 online service

2.One-to-One communication
3.One-Stop Service 
4.Professional Technical Support
 

Packing&Shipping

Packing Details : Carton+Pallet
Delivery Details : 3-30 days after received the payment

 

1. Special Single Box

 

2. Carton box

 

3. Pallet