By perfectbearing | 10/11/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

BS2-2312-2RS/VT143

YEL208-2DW/AG

N1010KPHA/SP

GACD70SA

U399A/U365L

F3BBC35M-CPSS-DFH

VKBA6857

12545

99332

307-2RS1

LBCR50A

71919ACDGB/P4A

639/3-2Z

29340E

RMS18

361206

QJ326N2MA/C3

209-ZNR

4G-909502

633066

361819B

61900

61800-2RS1

61803-2Z

QJ314N2MA/C2L

LBCD25-2LS

ECL207

BEAS012042-2RS

61844/W64

29906

25140

614086/C3

RBC1-0697A

305704-2Z

442596

BC1B242820CM

BB1-0219CA

99552

S71919ACD/P4AQBCD

16049

614086/C3

RBC1-0697A

99353

361956

613441

440359-2RS1

633066

361819B

4301AMB

BS2-2218-2RSK/GEM9

23960CC/L4BW33

QJ206MA/C2L

BS2-2224-2RS5K/VT143

BT1B328788/Q

613233A

BS2-2211-2CS2/C3

28300X

235147A

639343

23088CA/W33VE194

3308A-2RS1TN9/C3MT33

230/560CAK/C4W33

51330M

51326M

5413A

362005ATN

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com

By perfectbearing | 09/15/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

BAQ-3922BA

BEAM030100-2RS

BTF-1210A

LBCR 40 A-LS

LEAS 12 A

23156CCK/C3W33

305802C-2RS

22252CC/W33

611317C

71944ACD/P4AQBCA

294/850EF

BBYB362744

BMB-6209/080S2/UB002A

NN3018KTN9/SPW33

61844MA

BY-BAQ-3809C

BBY-0118

37611CAM2/C3

BVN311523

BVN7107

BT4-0012G/HA1C300VA901

BT4B328920G/HA1VA901

BSD2562CGA

BSD3062CGB

BSD3562CGA

BMB-6202/032S2/UA002A

353130B

197726

197730

353230A

22248

FD209RK

FD209RM

FD210R

BT1-0436A/Q

BMO-6206/064S2/UA002A

BC1B 322880AB

31316J1/QCL7A

230860

BVN-7151

BVNB311523

23034CDE4

2214 E-2RS1TN9

23256CC/W33

23236CC/W33

22216E

23040CC/W33

22230CCK/W33

21319E

22311E

23048CCK/W33

24024CCK30/W33

23956CCK/W3

21317EK

24138CC/W33

22319EJA/VA405

22356CC/W33

22318EK

23252CCK/W33

22336CC/W33

24138CC/W33

24152CCK30/W33

24140CCK30/W33

23224CCK/W33-

24032CCK30/W33

24144CC/W33

24156CCK30/W33

QJ330N2MA

QJ314MA

QJ307N2MA/C2L

QJ224N2MA

QJ212MA

NU1014ECP

BYNB311523

7317BECBP

61848MA

61822-2RS1

4203ATN9

3313A

729145

NU1880MP/C4VA3B82

294/1000

241/560

23240CC/C3W33

23164CC/W33

23160CC/W33

23180CA/W33

23192CAK/C3W33

23080CCK/W33

BT4-0004 G/HA1

EE649240/310

BT4B 334082G/HA1VA901

BT4B 334051G/HA1VA901

61932

32315

EE843220/290

22220EK

239/630CAK/W33

5211A-2RS1

23996 CA/W33

5217 A-2Z

NNCF4830CV

M336949/912

HM903249/2/210/2/Q

567/563

63004-2RS1

BS-2308-2CS/VT143

22308EK

24013CCK30/W33

316350DA

319148B

BC4B319768

NN3005K/SP

23992

24892

BS2-2211-2CS/VT143

24130

22231CC/W33

22336CCJA/W33VA406

24120 2CS5/VT143

BS-2218-2CSVT143

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com

By perfectbearing | 08/28/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

444455A

BS2-2217-2RSK/VT143

ETS44

GS81106

QJ226N2MA

QJ218N2MA

314385/WM060

71908CDGA/HCP4A

QJ311N2MA/C2L

AH2336G

BX-6314M/HC5C3

GLY.PG222530A

FPXB300

S7016CDGA/P4A

S7015ACDGA/P4A

S7022ACDGA/P4A

LBCD16D-2LS

C6915-2CS5V/C3

208NR

61856/C3

31319J2/DF

WS81108

61972MA

PCM141612E

365208

S7016ACDGA/HCP4A

4217ATN9

6202/16-2Z

61834/C3

61824-2RZ

61832

BC1B246747

AOH24164

FRB10/225

PCMF141612B

PSM121620A51

VKBA3532

NIL3214AV

TSN608L

315276

KR52PPA

PCMF101207B

TSN511C

PCM081008M

6040M/C3

619/8-2RS1

63008-2RS1

61972MA

H3030

HE208

Z015F

Z310

GLY.PG151712A

PG707550F

RLS9-2RS1

4312ATN9

PHE1060TGRSB

PHC10B-2SSX10FT

PCM050708E

BR368

S7017ACDGA/P4A

361206

QJ326N2MA/C3

AH2238G

BEAS012042-2RS

ECL207

61844/W64

ANWG466210

PHEF80NRTYRE

GLY.PG455020F

PCM404430B

LS3552

20204TN9

71805ACD/P4DGA

BC1B246747

FRB10/225

BK2020

RLS10-2Z

BSA204C/DBG5

315276

QJ311N2MA/C3

C3224K/C3

GLY.PG455020F

29260

305801C-2Z

52408

VKBA6857

4912

99332

619/8-2RS1

61904-2RS1

63008-2RS1

ASNH526

29456E

PG707550F

ETS40

GS81112

QJ304MA

S7017CDG/G34VQ4991

4912

23996CAK/C084W33

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com

By perfectbearing | 08/07/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

639213

FYTB506M

GEH17C

P2BTC50M-TPSS

VKBA3669

W609-2Z

SAKB14F

3201A-2RS1TN9/MT33

322/28B

39528/Q

15103S/Q

23944CCK/C4W33

K-37625/2

SYJ35TF

2216ETN9/C3

W6304-2RS1

53201

FYTB508M

H913810/QCL7C

H913843/810/QCL7C

3204A-2RS1

BAFB309981AA

SYJ45KF

BT1B328274A/QCL7C

SAKB10F

23136-2CS5/VT143

HM218210/2A

LM245848/810

53310

53317

53377/Q

33213TN9/QVT621

3420/QCL7A

GEH80ES-2LS

2K-25131

2K-06

BAHB311413A

BAH0043

W6003-2RS1/W64

AMS15ABP

67322

AMS15ABP

W608

H913810/QCL7C

H913843/810/QCL7C

HM220110/Q

466896

YEL208-2F

3307A

1224M

3311DMA

3206ATN9/C3

3305A-2RS1TN9/MT33

F4BC20M-TPZM

3208A-2Z/MT33

VKBA7549

LM245848/810

LM104911/Q

HM218248/W/2A/210/2A/

LM102910/Q

BS2-2216-2CS/VP0601

UKFB208K/H

BS2-2314-2RS/VT143

3305A-2RS1TN9/C3MT33

3420/QCL7A

LM104911/Q

361816C

382A

51213

TUL20TH

7317BGF

653/Q

3313AN/R842

BS2B444169C

2307E-2RS1TN9/C3

W628/9-2Z

SAL25C

32005X/Q

598

440320A

2K-25131

YAT206/VP076

OR-GAZ208S/WM068

51202J9

29590

51202J9

BS2-2215-2CS2/C4

29590

361816C

47681

BAFB446912AE

TUL20TH

7317BGF

S7016CEGA/HCP4A

E2.6006-2Z/C3

LBCR50

NN3028K/SPW33

NN3006KTN/SP

NNF5030ADA-2LSV

RLS18

71908CEGA/HCP4A

71911ACEGA/HCP4A

52308

E2.6007-2Z/C3

32944/DF

BTW50CTN9/SP

BS2-2217-2RSK/VT143

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com

By perfectbearing | 07/10/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

BS2-2312-2RS/VT143

YEL208-2DW/AG

Y/UCF209-28

N1010KPHA/SP

GACD70SA

FYT1.1/2TF

U399A/U365L

NCF2916CV

VKBA3440

F3BBC35M-CPSS-DFH

3308ANR/C3

Y/UCF209-28

N1010KPHA/SP

GACD70SA

22240-2CS5K/VT143

SAF611

BT1B243150/QCL7C

FNL520B

BLRB365214F

W6305-2Z

3309A-2RS1/C3MT33

3316A/C3

23026CCK/C3W33

FY50TF

TU20FM

P25TF

TU508M

YSA207-2FK

BS2-2214-2RSK/VT143

BAHB636114A

22352CC/C3W33

5412A

23152CCK/HA3C4W33

SAL50TXE-2LS

VKBA3491

YAR207-2FW/VA228

W61800-2Z/P6

K-33462

K-07100S

F3BBC35M-CPSS-DFH

FYTB45WF

HM801346X/QCL7A

JM205149

M12610/Q

SI-17C

SIKB16F/VZ019

SIKB6F

382A/Q

3213A-2RS1/C3MT33

SALKB14F

TUJ504

TU1.3/4TF

47487/47420A/Q

BT1B243150/QCL7C

BLRB365214F

W618/5

402566R1

148989A1

148957A1

105497H

105496/105503H

1258017C91

1277023C91

1302725C91

131097C91

131312C1

1317250C91

1322228C91

1322676C1

1324864C91

13367DC/13363D

1345226C1

1347233C1

1347431C1

140544A1

145161C91

156010C92

156011C92

156816C91

160588C91

160796C91

166957R91

168732C91

17498D179665C91

180955C1

181383C1

188126C91

191213C91

193282C91

195293C91

1964726C1

196473C1

1968297C1

197608R1

197609R91

1989222C1

1994713C1

1994833C1

204807C91

20879D

211587C91

214366C91

214490C91

274844R91

278927A1

287679C1

295109R91

298029R91

301533R1

311042A1

315421A1

315422A1

315423A1

315424A1

324461A1

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com

By perfectbearing | 06/24/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

BTM80A/HCP4CDBA

BTM80A/HCP4CDBB

BTM80A/P4CDBA

BTM80A/P4CDBB

BTM80B/HCP4CDBA

BTM80B/HCP4CDBB

BTM80B/P4CDBA

BTM80B/P4CDBB

85BNR10STYNDBLP4

BTM85A/HCP4CDBA

BTM85A/HCP4CDBB

BTM85A/P4CDBA

BTM85A/P4CDBB

BTM85B/HCP4CDBA

BTM85B/HCP4CDBB

BTM85B/P4CDBA

BTM85B/P4CDBB

90BNR10STYNDBLP4

BTM90A/HCP4CDBA

BTM90A/HCP4CDBB

BTM90A/P4CDBA

BTM90A/P4CDBB

BTM90B/HCP4CDBA

BTM90B/HCP4CDBB

BTM90B/P4CDBA

BTM90B/P4CDBB

100BNR10STYNDBLP4

BTM100A/HCP4CDBA

BTM100A/HCP4CDBB

BTM100A/P4CDBA

BTM100A/P4CDBB

BTM100B/HCP4CDBA

BTM100B/HCP4CDBB

BSD2047 C

BSD2562 C

BSD3062 C

BSD3572 C

BSD4072 C

BSD4090 C

BSD4575 C

BSD45100 C

BSD50100 C

BSD55100 C

BSD55120 C

BSD60120 C

BTM100B/P4CDBA

BTM100B/P4CDBB

110BNR10STYNDBLP4

BTM110A/HCP4CDBA

22324CCKJA/W33VA405

BT4-0012 G/HA1C300VA901

BT4B328920G/HA1VA901

BVN-7102B

BY-BAQ-3809C

452324M2/W502

452322M2/W502

452326M2/W502

452328M2/W502

NN3036K/SPW33

BBYB362744B

FYTB35TF

BS2-2218-2CS/VT143

BBY0079

BBYB362744B

160/110

BAQ-3922BA

HM88644/HM88611AS

462/453J2/Q

32005XJ2/Q

209VA-2BDV.P4LUS

BC1B 322880AB

BEAM030100-2RS

BS2-2220-2CS

BSD4575CGA

BSD50100CGA

BSD50100CGB

BSD55100CGA

BSD60120CGA

T7FC065/QL7C

71956CD GB/HCP4A

71956ACD GB/HCP4A

71944ACD/P4AQBCA

294/850EF

BVN311523

BVN7107

BSD2562CGA

BSD3062CGB

BSD3562CGA

BTM60A/HCP4CDBA

BTM90B/DBAVQ496

BTM90A/DBAVQ496

BTM60A/HCP4CDBB

BTM60A/P4CDBA

BTM60A/P4CDBB

BTM60B/HCP4CDBA

BTM60B/HCP4CDBB

BTM60B/P4CDBA

BTM60B/P4CDBB

65BNR10STYNDBLP4

BTM65A/HCP4CDBA

BTM65A/HCP4CDBB

BTM65A/P4CDBA

BTM65A/P4CDBB

BTM65B/HCP4CDBA

BTM65B/HCP4CDBB

BTM65B/P4CDBA

BTM65B/P4CDBB

70BNR10STYNDBLP4

BTM70A/HCP4CDBA

BTM70A/HCP4CDBB

BTM70A/P4CDBA

BTM70A/P4CDBB

BTM70B/HCP4CDBA

BT7M70B/HCP4CDBB

BTM70B/P4CDBA

BSD2562CGA

BSD3062CGB

BTM70B/P4CDBB

80BNR10STYNDBLP4

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com

By perfectbearing | 06/05/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

07000-15465

07000-15460

232-25-51430

235-25-11360

232-25-51170

235-25-11250

235-25-11530

235-25-11310

07000-12120

113-27-41360

235-25-00021

235-25-11292

235-25-11230

235-25-11330

235-25-11370

174-4504

212-5026

212-5027

120-0295

212-5024

5P-1948

5P-1949

L910310-20024

L910349

6314Z-C3

228833

5T-6343

6D-0692

9X-7550

314-4122

8X-4437

8E-2183

8X-4435

123-2939

9X-7288

123-2940

9X-7290

365-4922

2J-7137

2P-8988

2P-8989

6G-4361

6V-2702

1J-2176

8J-8879

5T-6343

120-0295

212-5024

5P-1948

5P-1949

363-0637

5T-6343

436-2593

174-3040

235-70-45240

235-70-45250

235-70-45370

198-30-00072

235-70-45161

235-70-45180

235-70-45220

235-70-45230

235-70-00260

235-70-45210

235-70-00320

714-07-12680

235-70-45430

235-70-45360

235-70-00270

07000-15310

07000-12135

07000-12120

06302-30313

07000-15160

235-70-00280

07000-15195

235-25-11440

235-25-00010

07000-15220

235-27-11210

113-27-41360

235-27-11950

235-27-11190

235-27-11170

07000-12100

235-25-11310

234-27-31730

235-27-31230

07020-00000

07145-00060

235-27-31270

235-27-11290

01643-31032

01593-31008

04050-12015

235-27-31240

235-27-11280

07000-F5100

235-27-11970

07145-00070

235-27-31120

235-27-31130

01010-81635

8T4122

235-27-11921

235-27-11911

235-27-11531

235-27-45120

235-27-45110

235-27-11640

01593-14829

235-27-11310

235-27-11940

234-27-31740

07145-00055

235-27-11330

235-27-11340

235-27-11320

01643-32460

235-27-11661

235-27-11660

235-27-12170

235-27-12180

235-27-11770

235-27-11760

235-27-11750

04065-07025

23B-27-11660

235-27-31280

23B-27-11920

235-27-12260

01593-33018

04050-16045

235-27-11802

235-27-11461

235-27-11421

01580-04234

22211CDKE4

NU1032M

NU1028M

6312ZZ

22211CK

22222 C3

22209K

5T-6343

436-2593

174-3040

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com

By perfectbearing | 05/09/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

285-22-12290

423-15-19421

216933H1

20G-26-11410

20Y-26-21281

22U-26-21320

206-26-71270

208-27-71220

145-13-22160

562-13-12160

145-13-22160

562-13-12160

145-13-12160

932286C91

569-15-39420

714-23-19431

09232-02932

09232-03225

09232-03838

09232-05125

09232-05138

130-09-14151

06120-02216

141-43-14170

714-07-12281

06120-02216

06120-02520

06120-03020

06120-03520

06120-04020

154-15-39120

195-15-19410

195-61-34130

207-27-61220

207-27-63210

20Y-27-22220

421-15-19411

428-15-19312

561-15-49420

56B-15-19420

06121-02820

07430-71060

07434-71061

14X-15-29440

419-15-12271

06121-02016

06120-01612

6127-61-3910

195-43-43190

426-22-11831

06123-01414

113-27-21270

124-15-59420

124-22-52230

6162-64-4910

6245-81-6920

DK036202-0700

141-43-16370

20G-26-11241

01623-01414

20Y-27-21260

84995

20K-22-31190

708-2H-12430

427-15-19320

427-15-19260

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com

By perfectbearing | 04/18/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

NN3017KTN9/SP

NNU4944BK/SP/B304/W33

NN3014TN/SP

NNF5006ADB-2LSV

NN3013KTN/SP

NNU4938B/SPW33

NJ2240ECML/DR

NN3022TN9/SP

NN3017TN9/SP

I112618M/C4W33

NNU4920B/SPW33

NNF5026ADA-2LSV

NNF5022ADA-2LSV

NN3038K/SPW33

NNU4932B/SPCNW33

NNU4928B/SP

NN3011KTN/SP

NNF5013ADB-2LSV

NNU4924B/SPW33

NNF5007ADA-2LSV

NN3036K/SPW33

NN3026KTN9/SPW33

NN3017KTN9/SPW33

NN3016KTN/SPW33

316977C

NNF5008ADB-2LSV

NN3008KM/SP

NNU4938BK/SPW33

NNU4930B/SPW33

NN3005K/SP

611574A

NNU4921BK/SPW33

NN3030K/SPW33

NN3007K/SP

NN3036K/SPW33VS019

NN3013TN/SP

NNF5024ADA-2LSV

NN3019KTN9/SPW33

NN3013KTN/SPW33

NN3012KTN/SPW33

NN3011KTN/SPW33

NJ2240ECMA/C3DR

BC2B322188HB1

BC2B319906

NN3012TN/SP

NNU4936B/SPC3W33

NN3016TN/SP

NN3011TN/SP

NNU4922BK/SPW33

NN3021KTN9/SPW33

NN3020KTN9/SPW33

NN3014KTN/SPW33

NN3009TN/SP

NN3008TN/SP

316019

AJ-BC2-0265

NNF5014ADB-2LSV

NNU4932B/SPC3W33

NN3021KTN9/SP

NN3019TN9/SPW33

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com

By perfectbearing | 03/31/2025 - Posted in News&Events, Products, SKF Bearings

I will introduce some SKF  bearings to you in this article,if you are in need of any of the below listed Spherical Plain Bearings, please send your valued inquiry to us. At the moment, we have stock of the Railway bearings below:

NJ2322-E-M1A-C4

6330-C3VL2071

81130-TV

23044 CC/C3W33

452308CACM2/W502

22308 E/VA405

452309 CACM2/W502

22309 E/VA405

452310 CACM2/W502

22310 E/VA405

452311CACM2/W502

22311 E/VA405

452312 CACM2/W502

22312 E/VA405

452313 CACM2/W502

22313 E/VA405

452314 CACM2/W502

22314 E/VA405

452315 CACM2/W502

22315 EJA/VA405

452316 CACM2/W502

22316 EJA/VA405

452317 CACM2/W502

22317 EJA/VA405

452318 CACM2/W502

22318 EJA/VA405

452319 CACM2/W502

22319 EJA/VA405

452320 CACM2/W502

22320 EJA/VA405

452322 CACM2/W502

22322 EJA/VA405

452324CACM2/W502

22324 CCJA/W33VA405

452326 CACM2/W502

22326 CCJA/W33VA405

452328 CACM2/W502

22328 CCJA/W33VA405

452330 CACM2/W502

22330 CCJA/W33VA405

452332 CACM2/W502

22332 CCJA/W33VA405

22334 CCJA/W33VA405

22336 CCJA/W33VA405

22338 CCJA/W33VA405

22340 CCJA/W33VA405

22344 CCJA/W33VA405

22348 CCJA/W33VA405

305807 C-2Z

305802 C-2Z

NUP2307ECP

305704 C-2Z

RNU203TN9

4205 ATN9

51104

51106

51111

51113

51214

51215

51216

51240M

51408

52207

52215

630/8-2RS1

3304 A-2RS1

QJ210MA

QJ211MA

QJ319N2MA

QJ309MA

QJ320N2MA

QJ322N2MA

QJ236N2MA

QJ315N2MA

3213 A/C3

2200E-2RS1TN9

For more information about the above bearings, please contact us without hesitate.We sincerely welcome friends all over the world to send inquiry to us .

Skype/Wechat/Whatsapp:8618963592618

Email: perfectbearing@www.perfectbearing.com