Page 213 - GLM_MasterCatalog_GCBOAH

Mercury / Mariner / Force
GLM Products, Inc.

GLM’s Needle & Caged Bearings Needle Bearing Identification & Kit TOC

They look the same but are NOT the same!
Our needle rollers are mainly supplied by needle roller specialist or
OEM manufacturers. The rollers are made of Bearing Steel (SAG 52100) Dia.ø
and have been subjected to heat treatment and precision grinding. The Length
hardness is HV700-860 (HRC 60-66). Both ends of our rollers used in Manifolds-Merc.
marine engines are shaped with a special profile, known as “crowning”. 16185
What is Crowning?
All Needle Bearings sold per pack. Each pack contains 200 pcs.
Crowning is also known as “controlled contour”, or coded as “ZB2”. The
crowning is to shape both ends, in a .040”-.080” area, to have a parabolic 16100 OEM: 29-20046T Dia. ø: 3.22mm Length: 12.80mm
curvature (as the figure below, however it is difficult to see this curvature 16140 OEM: 29-20063 Dia. ø: 3/32” Length: .4375”
with the naked eye). The purpose of crowning is to avoid high stress Manifolds-OMC
consentration at the end areas of rollers and to ensure even contact stress 16110 OEM: 29-26815 Dia. ø: 2.35mm Length: 12.60mm
between rollers and the race. Because the crowning lessens the rollers’ 16160 OEM: 29-39656 Dia. ø: 3/32” Length: 1/2”
maximum stress, it can increase bearing life significantly. 16120 OEM: 29-47270 Dia. ø: 3/32” Length: 41/64”
Common Needle Roller GLM’s Crowning Needle Roller 16130 OEM: 29-47897 Dia. ø: 7/64” Length: 19/32”
16170 OEM: 29-67483 Dia. ø: 3/32” Length: 51/64” Manifolds-Volvo
16150 OEM: 29-71422-1 Dia. ø: 5/32” Length: 39/64”
Stress Distribution This causes Stress Distribution This allows stress 16250 OEM: 29-818391 Dia. ø: 3/32” Length: 59/64”
for common HIGH stress in for crowning to be EVENLY
needlle rollers both ends needle rollers distributed 16260 OEM: 29-822553 Dia. ø: 3/32” Length: 45/64”
How About the Cages? 16190 OEM: 29-98295 Dia. ø: 3/32” Length: 33/64”
GLM’s Cages use Needle Bearing Kit Manifolds-Barr
High Quality Swiss Made 16185 OEM: N/A (w/ washers) Dia. ø: 3/32” Length: 1-1/32”
Automatic Carbonitriding
Furnace Heat Treatment
Because the cage is constantly subject to friction between rollers and Crankshaft Bearings, Oil Seals & O-rings
the race, the hardness of each corresponding contact area must be ass-
igned appropriately to achieve optimal bearing life. As a general rule, the MerCruiser
roller and surface of the inner and outer races should have higher hardness, 21627
HV 700~860 (HRC 60~66), to ensure wear resistance. The hardness of
the cage should be slightly less than the rollers. Also, the cage material
should be tough enough to avoid cage fracture during high-load, high
speed operation.
To ensure the high-quality heat treatment of the cages, GLM cages use
Swiss made, automatic carbonitriding furnace. The strict quality inspection 85040 Merc / Mar / For
also applied to every production lot to make sure the surface hardness, 21622
case depth, and toughness are consistent with the top quality standards. 85013
PowerHead Bearings 85460
Crankshaft Bearings
21840 OEM: 30-63326T 21624 OEM: 30-88268T OMC / Volvo
21860 OEM: 30-63742T 21626 OEM: 30-64424T
21622 OEM: 30-43011T 21627 OEM: 30-62567T
21623 OEM: 30-67923T
Crankshaft Oil Seals Johnson / Evin
85040 OEM: 26-16977 85460 OEM: 26-56397
16420 22810
85015 OEM: 26-66301 85022 OEM: 26-864319
85010 OEM: 26-41953 85012 OEM: 26-815449
Connecting Rod Bearings - Big End 85090 OEM: 26-43993 85013 OEM: 26-830898
16200 OEM: 31-17514A1 Journal ø: 1.1825” (30mm) 85014 OEM: 26-54815 Yamaha
31-17514A2 Cage: Metal Needle Qty: 16 Crankshaft O-rings
16210 OEM: 31-62596A1 Journal ø: 1.125” 82340 OEM: 25-20081 80410 OEM: 25-67206
Cage: Metal Needle Qty: 16 82280 OEM: 25-20826 80430 OEM: 25-67207
16410 OEM: 31-879877A1 Journal ø: 0.875” 82310 OEM: 25-20863 80330 OEM: 25-823683
Cage: Metal Needle Qty: 16 82360 OEM: 25-31305 41370 OEM: 25-858225 Index / X-Ref.
16420 OEM: 31-43012A1 Journal ø: 1.4063” 80420 OEM: 25-32546 Square Ring
Cage: Metal Needle Qty: 16
Center Bearings 81430 OEM: 25-54029 81540 OEM: 25-88955
80350 OEM: 25-62457 81500 OEM: 25-89224
22800 OEM: 31-67445 Journal ø: 1.375”
Cage: Metal Needle Qty: 16 81520 OEM: 25-62700 81390 OEM: 25-90011
22810 OEM: 31-88269T Journal ø: 2.1875” 81530 OEM: 25-89497 82390 OEM: 25-47254 Warranty
Cage: Platic Needle Qty: 16 80440 OEM: 25-64966

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