Name: Railway Bearings
SKU: 0

PRODUCTS



Railway Bearings

Focus Bearing's Railway Bearings are widely applied in various fields, including rail transportation, ships, electric motors, ports, construction machinery, metallurgy, and military products. Our ranges of products covers applications for axle bearings , gearbox and drive motors.

We offer large ranges of bearings (ball bearings and roller bearings) for rail application: metric size&inch size TBU&CTBU series Tapered Roller Bearing Units,Cylindrical roller bearings, Cylindrical roller bearings standardized by UIC, Spherical Roller Bearings, Radial Ball Bearings, Insulated bearings and more.

+8653186421919

+8618615252542

sales@focusbearing.com

MESSAGE

FEATURES

APPLICATIONS

MANUFACTURERS

MODELS

TBU tapered roller bearing units, metric sizes

Size	Principal dimensions
	d	D	B	C
	mm
TBU 90	90	154	106	115
TBU 100	100	175	113.5	120
TBU 120	120	195	126	131
TBU 130 x 210	130	210	126	132
TBU 130 x 220	130	220	145	150
TBU 130 x 230	130	230	150	160
TBU 140	140	220	133	140
TBU 150	150	250	154.5	160
TBU 160 x 270	160	270	160	150
TBU 160 x 280	160	280	180	180
TBU 178 x 265	178.62	265.137	134	139

CTBU compact tapered roller bearing units

Size	Principal dimensions
	d	D	B	C
Metric sizes	mm
CTBU 100 x 175	100	175	130	120
CTBU 110 x 180	110	180	142	142
CTBU 130 x 210	130	210	148	132
CTBU 130 x 220	130	220	145	135
CTBU 130 x 230	130	230	166	150
	130	230	176	160
CTBU 130 x 240	130	240	172	160
CTBU 130 x 250	130	150	172	160
CTBU 140 x 220	140	220	150	140
CTBU 150 x 250	150	250	180	160
CTBU 160 x 280	160	280	195	180
Inch sizes	mm (in)
CTBU Class K 6 1/2” x 9	157 (6.1880)	250 (9.8420)	181 (7.1102)	160 (6.2992)
CTBU Class G 7” x 9” and 7” x 12”	178 (7.0005)	276 (10.8750)	200 (7.8740)	186 (7.3120)

TBU tapered roller bearing units, inch sizes /TIMKEN AP bearings

Size

Inner Race (Cone) Number
Outer Race (Cup) Number

Principal dimensions

mm(in)

Class B 4 1/4” x 8

HM120848
HM120817XD

101.600

(4.0000)

165.100

(6.5000)

106.35

(4.1870)

114.30

(4.5000)

Class C 5” x 9”

HM124646
HM124618XD

119.088

(4.6885)

195.263

(7.6875)

136.525

(5.3750)

142.875

(5.6250)

Class D 5 1/2” x 10”

HM127446
HM127415XD

131.775

(5.1880)

207.963

(8.1875)

146.75

(5.7780)

152.40

(6.0000）

Class E 6” x 11”

HM129848
HM129814XD

144.475

(5.6870)

220.263

(8.6875）

155.575

(6.1250)

163.51

(6.4370)

Class F 6 1/2” x 12”

HM133444
HM133416XD

157.175

(6.1879)

252.413

(9.9375)

177.80

(7.0000)

184.15

(7.2500)

Class G (7” x 12”)

HM136948
HM136916XD

177.787

(6.9995)

276.225

(10.8759)

134.9

(5.31)

185.725

(7.3120)

Class G (7” x 14”)

HM136948
HM136916XD

177.787

(6.9995)

276.225

(10.8750)

134.9

(5.31)

185.725

(7.3120)

Class GG (7”)

H337846
H337816XD (3)

177.787

(6.9995)

276.225

(10.8750)

139.7

(5.50)

196.850

(7.7500)

Class K (8”)

M241547
M241513XD

203.200

(8.0000)

301.625

(11.8750)

108.0

(4.25)

140.097

(5.5156)

BENEFITS

● Heavy load capacity .

● Easy installation and maintenance.

● Precise engineering for longer lifespan and lower maintenance needs.

● Highly resistant to shocks and impacts.

● Exceptional temperature resistance

● Long-lasting durability

SPECS

● Raw Material

Bearing rings and rollers:100CT6,100CrMnSi6-4

● Internal Design

B-Asymmetrical rollers

C-Symmetrical rollers

R- Bearings without inner rings

● Bore Type

K-Tapered bore ratio 1: 12

No code- Cylindrical

● Running accuracy

P6- Dimensional and running accuracy to ISO tolerance class

● Cage

M- Machined brass cage, roller centered MA- Machined brass cage, outer ring centered

MB- Machined brass cage, inner ring centered

TN - Injection molded cage of glass fiber reinforced polyamide 6.6

● Radial Clearance

No code - Standard

C3- Greater than Standard

C4-Greater than C3

● Lubrication, sealing

W33 - Annular groove and three

lubrication holes in the outer ring

2RSR-Bearing with 2 seals

2ZR-Bearing with 2 shields

● Locomotive traction motors,

● Generators,

● Transmissions,

● Gearboxes,

● Locomotive axle boxes,

● Freight car axle boxes,

● Wagon bogies

FCS SKF FAG TIMKEN NSK

MESSAGE

SIMILAR RECOMMENDED

+8653186409399

sales@focusbearing.com

+8618615252542