WD Bearing Group
WD Bearings America LLC
5845 W 82nd Street, Suite 102,
Indianapolis, IN 46278.
Tel: +1 317 661 3293
Email: Contact@wd-bearing.com
WD Waelzlager GmBH
Ost Strasse 74A 40724,
Hilden, Germany
Tel: +49 2103 968 6352
Email: Contact@wd-bearing.com
WD Bearing Group
No. 100, Zhenyang Road,
Jiangyin, Wuxi, P.R China, 214401
Tel: 0510-8655 7067
Fax: 0510-8655 7065
Email: Contact@wd-bearing.com
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Taper Roller Bearings
Taper Roller Bearings Diagram
Unit of Measure
Items Taper Roller Bearings
A4050-A4138
0.5000 Inch (in) Bore Diameter Cup and Cone Style Tapered Roller Bearing 		Taper Roller Bearings
L21549-L21511
0.6250 Inch (in) Bore Diameter Cup and Cone Style Tapered Roller Bearing 		Taper Roller Bearings
11590-11520
0.6250 Inch (in) Bore Diameter Cup and Cone Style Tapered Roller Bearing 		Taper Roller Bearings
LM11749-LM11710
0.6875 Inch (in) Bore Diameter Cup and Cone Style Tapered Roller Bearing 		Taper Roller Bearings
LM11949-LM11910
0.7500 Inch (in) Bore Diameter Cup and Cone Style Tapered Roller Bearing
Description N/A
Brands N/A WD Bearings
Cup Model N/A A4138 N/A L21511 N/A 11520 N/A LM11710 N/A LM11910
Cone Model N/A A4050 N/A L21549 N/A 11590 N/A LM11749 N/A LM11949
Bore Diameter (d) N/A 0.5000 in N/A 0.6250 in N/A 0.6250 in N/A 0.6875 in N/A 0.7500 in
Outside Diameter (D) N/A 1.3775 in N/A 1.3775 in N/A 1.6875 in N/A 1.5700 in N/A 1.7810 in
Cone Width (B) N/A 0.4326 in N/A 0.4330 in N/A 0.5625 in N/A 0.5750 in N/A 0.6550 in
Cup Width (C) N/A 0.3437 in N/A 0.3430 in N/A 0.3750 in N/A 0.4200 in N/A 0.4750 in
Bearing Width (T) N/A 0.4330 in N/A 0.4330 in N/A 0.5625 in N/A 0.5450 in N/A 0.6100 in
Dimension r N/A 0.0500 in N/A 0.0500 in N/A 0.0600 in N/A 0.0500 in N/A 0.0500 in
Dimension r1 N/A 0.0500 in N/A 0.0500 in N/A 0.0600 in N/A 0.0500 in N/A 0.0500 in
Grease Limiting Speed N/A 7200 rpm N/A 6600 rpm N/A 5800 rpm N/A 5900 rpm N/A 5300 rpm
Oil Limiting Speed N/A 11000 rpm N/A 10500 rpm N/A 9200 rpm N/A 9400 rpm N/A 8400 rpm
Dynamic (Cr) Load Rating N/A 19300 kN N/A 14100 kN N/A 17400 kN N/A 22900 kN N/A 30600 kN
Static (Cor) Load Rating N/A 17100 kN N/A 13900 kN N/A 17400 kN N/A 23400 kN N/A 32000 kN
Mass N/A 0.05 kg N/A 0.05 kg N/A 0.10 kg N/A 0.08 kg N/A 0.13 kg
Style N/A Cup and Cone