GUIDEROL® Needle Bearings
Separable or Non-separable Inner/Outer Raceway
Shaft Diameter Range
½" to 9¼" and 15mm to 235mm
Bearing Quality Steel
Machined Outer Race
Race manufactured from bearing quality steel and hardened to carry heavy dynamic and static loads.
Unique Center Guided Needle Rollers
Centered guided rollers are designed to fit a mating guide rail. They also allow for a maximum width of roller within the bearing.
Retaining Ring and Center Rail
Provides retention of needle rollers and helps guide rollers to prevent skewing.
Annular Lubrication Groove
The groove provides a circumferential path to direct lubricant to the oil hole when lubricating through the housing.
Factory Grease Fill
Sealed GUIDEROL® bearings are factory lubricated with a medium temperature (-30° to 250°F, -34° to 121C) NLGI 1 grease. Unsealed bearings are packaged with a light oil film as a rust preventative. Contact Application Engineering when application conditions require special lubricants.
The rubber lip seal is available in several different configurations. It is capable of operating at up to 250°F maximum temperature.
"DS" Matched Bearings - Load Sharing
Where two bearings are installed, load sharing should be encouraged when the distance between is less than the width of one bearing. To accomplish this, it is recommended that the bearings be diametrically matched. The option, when applicable, matches OD and ID tolerances. It also maintains diametrical clearance within 30% of the tolerance range and the radial runout within 20% of the tolerance range. The high point of runout is indicated on the bearing faces. For more information and matching factors please review the engineering section for matched bearings. Matched bearings packaged as sets.
Machined Inner Ring(MI)
The precision ground inner ring provides a hardened raceway for the rollers when used with an unhardened shaft. The ring contains an oil hole and annular groove relubrication of the bearing. It can be used with both CAGEROL® and GUIDEROL® bearings. It can also be utilized as a bushing in plain bearing applications.
When requested, standard bearings can be factory filled with customer specified lubricant.
McGill® GUIDEROL® machined race full complement needle bearings are manufactured from bearing quality steel. The unique roller and race design provides center-guided rolling elements for higher radial load capacity. It is also well-suited for oscillating applications. GUIDEROL bearings are constructed with a radial lubrication hole and a groove on the outer raceway. We also offer an optional inner raceway (MI-series) for re-lubrication through the housing or shaft. Other options include a variety of seal configurations to either help prevent contaminate entry or contain the lubricant. Depending on your preference, these bearings are available in a wide variety of sizes and options.
|| Material/ Roller Complement
|| Metric Equiv.
|Cagerol||MR|| Bearing Steel Caged Needle Roller
|| 5/8"-9 1/4"
|| 16 - 235
| MR Sealed
||Bearing Steel Caged Needle Roller||5/8"-4 1/4"|| 16 - 108
| MR Narrow
||Bearing Steel Caged Needle Roller||5/8"-6 1/2"|| 16 - 165
|Guiderol||GR||Bearing Steel Full Complement Center Guided Needle Roller||1/2"-9 1/4"||13 - 235|
| GR Sealed
||Bearing Steel Full Complement Center Guided Needle Roller||5/8"-4 1/4"||16 - 108|
|GR Narrow||Bearing Steel Full Complement Center Guided Needle Roller||5/8"-6 1/2"||16 - 165|
|Multi-Rol||RS|| Bearing Steel Full Complement Needle
||3/4"-3"||19 - 76|
|RD||Bearing Steel Full Complement Needle||1 1/4"-4"||32 - 102|
|Journal|| 200 Series
||Bearing Steel Caged Roller|| 1 3/6"- 8 5/8"
|| 30 - 220
|300 Series||Bearing Steel Caged Roller|| 1"-5 3/16"
|| 25 - 130
Metric Dimensions are for reference only. Listed needle roller bearings are manufactured to inch dimensions.
|Limited Radial Space
|| Dynamic Load Rating
|| Static Load Rating
|| Oscillating Capability
|| High Speed
|| Relative Base Cost
|| Separable Inner Race
|| Rubber Lip Seal
|| Metallic Shield
|| DS Matching
|| Separable Outer
|Best||Good||Good||Best|| Not Recommended