INA bearing suffix

INA bearing suffix identify INA bearing components or variants haveing a design and/or features that differ in some respect from the basic design.

The details of suffixes are shown ina the table below, which are sorted by INA bearing type. The table below provides a quick regarding INA bearing suffixes. See each part section for part number designation.

INA insert ball bearings suffix

Suffix Description Design
AS2/V Bearing outer ring with 2 lubrication holes in offset planes Standard
B Bearing with spherical outer ring
2C Flinger shields on both sides
FA101 High and low temperature design –40 °C to +180 °C
FA106 Bearing subjected to special noise testing
FA107 Bearing with lubrication holes on the locating side
FA125.5 With Corrotect® coating, protected against corrosion
FA164 High temperature design up to +250 °C
KRR Lip seals on both sides (R type seal)
KLL Labyrinth seals on both sides (L type seal)
KTT Triple lip seals on both sides (T type seal)
NR Slot and snap ring for radial insert ball bearings with cylindrical outer ring
NPP Lip seals on both sides (P type seal)
OSE Bearing without locking element (eccentric locking collar)
2RSR Lip seals on both sides (vulcanised)
VA Corrosion-resistant design made from high alloy rolling bearing steel

Housing units

Suffix Description Design
2C Radial insert ball bearing with flinger shields on both sides Standard
FA101 High and low temperature design –40 °C to +180 °C
FA106 Bearing subjected to special noise testing
FA107 Bearing with lubrication holes on the locating side
FA125 With Corrotect® coating
FA164 High temperature design up to +250 °C
N Cast iron housing with undercut slot for end caps
OSE Bearing without clamping element
JIS Housing dimensions according to JIS B 1559

INA cylindrical roller bearings suffix

Single row full complement cylindrical roller bearings

Suffix Description Design
BR Black oxide coated Available by agreement
C3 Radial internal clearance larger than normal
C4 Radial internal clearance larger than C3
C5 Radial internal clearance larger than C4
E Increased capacity design Standard depending on series, see dimension table
TB Bearing with increased axial load carrying capacity Standard depending on bearing size, see dimension table

Double row cylindrical roller bearings

Available designs of SL01, SL02, SL1850 INA roller bearings

Suffix Description Design
BR Black oxide coated Available by agreement
C3 Radial internal clearance larger than normal
C4 Radial internal clearance larger than C3
C5 Radial internal clearance larger than C4
TB Bearing with increased axial load carrying capacity

Available designs of cable sheave INA bearings

Suffix Description Design
C3 Radial internal clearance larger than normal Available by agreement
C4 Radial internal clearance larger than C3
C5 Radial internal clearance larger than C4
RR Corrosion-resistant design, with Corrotect®coating
2NR Cable sheave bearing supplied with two loose-packed retaining rings WRE
- Without seals
P Seal on one side
PP Seals on both sides, for cable sheave bearings Standard

INA needle roller bearings suffix

INA needle roller and cage assemblies
INA needle roller and cage assemblies designation

Suffix Description Design
TV Cage made from glass fibre reinforced polyamide 66 -
Bearings with plastic cage: see dimension table
Standard
ZW Double row design (certain sizes only)

INA drawn cup needle roller bearings
INA drawn cup needle roller bearings designation

Suffix Description Design
AS1 With lubrication hole from HK0609 Special design, available by -
agreement only
GA08 Unsealed, greased bearings for operating -
temperatures from –30 °C to +140 °C
RS Contact seal on one side Standard
TV Cage made from glass fibre reinforced polyamide 66
ZW Double row design, with lubrication hole
2RS Contact seals on both sides

INA machined needle roller bearings

Needle roller bearings with ribs

Suffix Description Design
C3 Radial internal clearance larger than normal Special design,
available by agreement
P5 High dimensional and geometrical accuracy
RSR Contact seal on one side Standard
TV Bearing with cage made from
glass fibre reinforced polyamide 66
ZW Double row design, dependent on the size
2RSR Contact seals on both sides

INA needle roller bearings without ribs
INA needle roller bearings without ribs designation

Suffix Description Design
ASR1 Lubrication hole and lubrication groove in the outer ring, dependent on the size Standard
IS1 Lubrication hole in the inner ring,
dependent on the size
TV Bearing with cage made from glass fibre reinforced polyamide 66, dependent on the size
ZW Double row design, dependent on the size

INA inner rings

Suffix Description Design
C3, C4 Radial internal clearance larger than normal Special design,
available by agreement
C2 Radial internal clearance smaller than normal
EGS Surface ground free from spiral marks for rotary shaft seals to DIN 3 760 and DIN 3 761
IS1 With lubrication hole
VGS Machining allowance z on raceway 

INA axial angular contact ball bearings suffix

Suffix Description Design
PE Less stringent bearing design Standard
T, TVP Polyamide cage, guided by balls
2AP Axial angular contact ball bearings, matched pair (ZKLN, ZKLF)
2RS Contact seals on both sides
2Z Gap seals on both sides

INA thrust cylindrical roller bearings suffix

Suffix Description Design
M1)  Brass cage Standard
TV1)  Plastic cage made from glass fibre reinforced polyamide 66
P5 High dimensional and geometrical accuracy Special design2) , available by agreement
  1. Depending on series and size.
  2. For axial bearing washers GS, WS.

INA thrust needle roller bearings suffix

Suffix Description Design
TV Plastic cage made from glass fibre reinforced polyamide 66 Standard
RR Corrosion-resistant design, with Corrotect® coating Special design, available by agreement

INA combined needle roller bearings suffix

Suffix Description Design
TV Bearing with radial cage made from
glass fibre reinforced polyamide 66
Standard
Z Bearing with end cap
Axial bearing component greased with lithium complex soap grease to GA08

axial/radial bearings

Suffix Description Design
H1 ... Reduced tolerance on mounting dimension H1
(postscript: H1 with tolerance ± ...)
Special design, available by agreement
H2 ... Reduced tolerance on mounting dimension H2
(postscript: H2 with tolerance ± ...)
- Axial and radial runout tolerances restricted by 50%
(additional text: axial/radial runout 50%)

Needle roller/axial cylindrical roller bearings

Suffix Description Design
L Extended, stepped shaft locating washer Standard
TV Cages made from glass fibre reinforced polyamide 66

INA crossed roller bearings suffix

Suffix Description Design
RR Corrosion-resistant design, with Corrotect® coating Special design, available by agreement
RLO Low clearance Standard
VSP Preloaded

INA sealing rings suffix

Suffix Description Design
FPM Sealing rings G and GR for temperatures from –20 °C to +160 °C or
circumferential speeds up to 16 m/s
Special design, available by agreement
HNBR Sealing rings G and GR for
temperatures from –30 °C to +140 °C or
circumferential speeds up to 12 m/s

INA roller clutches suffix

INA drawn cup roller clutches

Suffix Description Design
- Steel pressure springs Standard
KF Plastic pressure springs
R Knurled outside surface
RR Drawn cup roller clutch with Corrotect® coating Special design, available by agreement

INA track rollers suffix

Yoke type track rollers

Suffix Description Design
PP Plastic axial plain washer with formed seal lip on both sides of the yoke type track roller, giving a three-stage seal Standard
RR Protected against corrosion by Corrotect® special coating
TV Plastic cage
2RS Protected lip seal on both sides of the yoke type track roller
2RSR Radial contact lip seal on both sides of the yoke type track roller
2ZL Sealing shield with lamellar rings on both sides of the track roller

Stud type track rollers

Suffix Description Design
PP Plastic axial plain washer with formed seal lip on both sides of the stud type track roller, giving a three-stage seal Standard
RR Protected against corrosion by Corrotect® special coating
SK Hexagonal socket only on the flange-side end face, no relubrication facility
2RS Protected lip seal on both sides of the stud type track roller

Ball bearing track rollers

Suffix Description Design
DRS Lip seal on the stud side Standard
RR Protected against corrosion by Corrotect® special coating Special design, available by agreement
X Cylindrical outside surface Standard
2RS Lip seals on both sides, giving axial sealing action
2RSR Lip seals on both sides, giving radial sealing action
2Z Sealing shields on both sides

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