价格合理,中国直邮
骑行用品网上商城
1.000m² 德国实体店
Nav
Nav
 
Logo
购物车
发货到: CN

退出
订单状态

Enduro Bearings MR 215321 滚珠轴承 MR 215321 LLU ABEC 3 MAX 21.5x31x7mm

零配送费用 to CN运费.

Color

数量
添加到购物车
仅在线和单击并收集
目前在Kronberg商店有售
商品编号
生产商货号
选项
Enduro Bearings MR 215321 滚珠轴承 MR 215321 LLU ABEC 3 MAX 21.5x31x7mm 9,00€ 87920125
请选择一项。

Enduro Bearings MR 215321 bearing

Highlights

  • Bearing-No.: MR 215321
  • Measures: 21.5x31x7mm (inner diameter x outer diameter x width)

Technologies

LLU
Similar to the LLB type seal, LLU is a full contact, dual lip seal riding in a groove on the inner race. With more sealing pressure, these are ideal for pivots or headsets that continually come in contact with dirt, sweat, and dust. The increased seal pressure and 2 lips help retain the 90% grease fill we use on these bearings to better displace any moisture and continually lubricate the balls and races.

ABEC 3
ABEC ratings (Annular Bearing Engineer’s Committee) are standards to which each bearing must pass many tests in order to meet the scheduled requirements including noise testing at high RPM, extremely tight tolerances for the internal diameter, outer diameter, roundness of ball, trueness of races, and surface finish for all of the above. Some aspects of ABEC ratings are important for bicycle bearings, but not all. In fact a high ABEC rated number for a bearing does not necessarily mean a high performance, long lasting bearing for your bicycle. For instance, you can have a high ABEC rated bearing that has a race groove only half as deep as ours because this feature is not covered by ABEC ratings. Since the groove would be shallower, there is less surface for the ball to roll on, and easier to pass the noise test. (Less surface contact = lower noise). However, the shallow groove of this bearing can yield less than half the support of our deeper groove design, and can be only half as strong; lasts half as long and becomes rough much sooner. Our deep groove ABEC 3 and ABEC 5 bearings offer the deepest grooves possible in every size, and are more difficult to pass the test due to the improved architecture of our bearings.

Scope of delivery

  • 1 x Enduro Bearings MR 215321 bearing MR_215321_LLU ABEC_3 MAX 21.5x31x7mm (see item description for details)
AJAX Loader Icon