Inner Ring IR LR

IR inner ring is processed through heat treatment and precision machining, tolerance of dimension and geometric accuracy accords to the national standard. There is guiding chamfering at the two ends of the bearing race of the inner ring, which is convenient for installation. They are used for situation when the axis can not be processed with heat treatment and can not be treated as bearing race. When the needle rollers with inner ring and without ring are used together, normal working windage can be reached.

Inner ring tolerance of LR is more than IR, terminal facet is not grinded, the price is low and they are usually used together with needle roller bearing with pressed outer ring.

IR5X8X12
IR5X8X16
IR 6X9X12
IR 6X9X16
IR7X10X10.5
IR7X10X12
IR7X10X16
IR8X12X10.5
IR8X12X12
IR8X12X12.5
IR9X12X12
IR9X12X16
IR10X13X12.5
IR10X14X13
IR10X14X16
IR10X14X20
IR12X15X12
IR12X15X12.5
IR12X15X16.5
IR12X15X22.5
IR12X16X13
IR12X16X16
IR12X16X20
IR12X16X22
IR14X17X17
IR15x18x16
IR15x18x16.5
IR15X19X16
IR15X19X20
IR15X20X13
IR15X20X23
IR17X20X16
IR17X20X16.5
IR17X20X20
IR17X20X20.5
IR17X20X30.5
IR17X21X16
IR17X21X20
IR17X22X13
IR17X22X16
IR17X22X23
IR17X24X20
IR20X24X16
IR20X24X20
IR20X25X17
IR20X25X20
IR20X25X20.5
IR20X25X26.5
IR20X25X30
IR20X25X38.5
IR20X28X20
IR22X26X16
IR22X26X20
IR22X28X17
IR22X28X20
IR22X28X20.5
IR22X28X30
IR25X29X20
IR25X29X30
IR25X30X17
IR25X30X20
IR25X30X20.5
IR25X30X26.5
IR25X30X30
IR25X30X32
IR25X30X38.5
IR25X32X22
IR28X32X17
IR28X32X20
IR28X32X30
IR30X35X13
IR30X35X16
IR30X35X17
IR30X35X20
IR30X35X20.5
IR30X35X26
IR30X35X30
IR30X37X18
IR30X37X22