Page 61 - needle bearings

Bearing Type Symbols and Auxiliary Symbols
NTN

12. Bearing Type Symbols and Auxiliary Symbols

Table 12.1 Bearing Type Symbols

Type code Bearing type Type code Bearing type
811 Single-direction thrust cylindrical roller bearing, dimension series 11 MI Inner ring, inch series
812 Single-direction thrust cylindrical roller bearing, dimension series 12 MR Machined ring needle roller bearing without inner ring, inch series
893 Single-direction thrust cylindrical roller bearing, dimension series 93 NA22 Roller follower with inner ring, dimension series 22
A Needle roller, spherical type NA48 Machined ring needle roller bearing with inner ring, dimension series 48
AS11 Steel plate thrust washer, dimension series 11 NA49 Machined ring needle roller bearing with inner ring, dimension series 49
ARN Needle roller bearing with double-direction thrust cylindrical roller bearing NA59 Machined ring needle roller bearing with inner ring, dimension series 59
AXK11 Thrust needle roller bearing, dimension series 11 NA69 Machined ring needle roller bearing with inner ring, dimension series 69
AXN Needle roller bearing with double-direction thrust needle roller bearing NA49ʜS Clearance-adjustable needle roller bearing with inner ring
BF Metallic flat cage for linear flat rollers NAO Machined ring needle roller bearing, separable type, with inner ring
BK Drawn cup needle roller bearing with close end NATR Roller follower
BR Snap ring for bearing housing NATV Roller follower, full complement roller type
CRV Full complement roller for cam follower, NIP Grease nipple
DCL inch series NK Machined ring needle roller bearing without inner ring
Drawn cup needle roller bearing with open end, inch series NKIA59 Complex bearing : Needle roller bearing with angular ball bearing
F Needle roller, plane type dimension series 59 Complex bearing
FF Linear flat roller NKIB59 Needle roller bearing with three-point contact type ball bearing
FR Bottom roller, for drawing frame (textile machine) dimension series 59
FRIS Bottom roller NKX Complex bearing : needle roller bearing with thrust ball bearing
G Synthetic rubber seal, one-lip type without dust-proof cover
GD Synthetic rubber seal, double-lip type NKXʜZ Complex bearing: Needle roller bearing with thrust ball bearing
GK Needle rollers with split type cage with dust-proof cover
GS811 Outer ring for thrust bearing, dimension series 11 NKXR Complex bearing: Needle roller bearing with thrust cylindrical roller bearing
GS812 Outer ring for thrust bearing, dimension series 12 without dust-proof cover
GS893 Outer ring for thrust bearing, dimension series 93 NKXRʜZ Complex bearing: Needle roller bearing with thrust cylindrical roller bearing
HCK Drawn cup needle roller bearing for cross joint with dust-proof cover
HF One-way clutch NUKR Cam follower, full complement roller type
HFL One-way clutch integral with bearing NUTR2 Roller follower, diameter series 2
HK Drawn cup needle roller bearing with open end NUTR33 Roller follower, diameter series 3
HMK Drawn cup needle roller bearing with open end, for heavy load application NUTW Roller follower outer ring, middle rib type
IR Inner ring PK Needle roller and cage assembly
JFʝS Arms for tension pulley and jockey pulley RF Polyamide resin cage for linear flat rollers
JPUʝS Tension pulley and jockey pulley RLM Linear roller bearing
K Needle rollers with cage RNA22 Roller follower without inner ring, dimension series 22
K811 Thrust cylindrical roller, dimension series 11 RNA48 Machined ring needle roller bearing without inner ring, dimension series 48
K812 Thrust cylindrical roller, dimension series 12 RNA49 Machined ring needle roller bearing without inner ring, dimension series 49
K893 Thrust cylindrical roller, dimension series 93 RNA59 Machined ring needle roller bearing without inner ring, dimension series 59
KBK Needle roller and cage assembly for small ends RNA69 Machined ring needle roller bearing without inner ring, dimension series 69
KD Linear ball bearing, stroking type RNA49ʜS Clearance-adjustable needle roller bearing, without inner ring
KH Linear ball bearing, drawn cup type RNAB2 Open type roller follower without inner ring, diameter series 2
KLM Linear ball bearing, machined ring type RNAO Machined ring needle roller bearing, separable type, without inner ring
KLMʝS Linear ball bearing, clearance-adjustable type WR Snap ring for shaft
KLMʝP Linear ball bearing, open type WS811 Thrust inner ring, dimension series 11
KR Cam follower WS812 Thrust inner ring, dimension series 12
KRU Cam follower, shaft eccentric type WS893 Thrust inner ring, dimension series 93
KRV Cam follower, full complement roller type
KRVU Cam follower, full complement roller and shaft eccentric type

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