Sprag Clutch One Way Backstop Bearing (B203)

• Feature: Vacuum
• Style: Without Inner Ring
• Rows Number: Single
• Load Direction: Radial Bearing
• Material: Bearing Steel
• Model: One Way Backstop Bearing
• Model NO.: B200 SERIES
• Type: Sprag
• Drag Torque: 39.2-1390n.M
• Inner Race: 1000-2400r/Min
• Outer Race: 180-500r/Min
• Shaft Size: 16.51mm
• Tickness: 25-42mm
• Precision: P6
• Export: Worldewide
• Transport Package: Single Box or as Your Requirements
• Specification: P6
• Trademark: SUMA or OEM
• Origin: China
• HS Code: 84836000
• Production Capacity: 20000PCS/Month

Product Description

Sprag Clutch One Way Backstop Bearing ( B203) 
Industrial Machine Clutch One Directional Bearing with Sprag Type ( B2012) 

Type S200(B200) is a non bearing supported sprag type freewheel.
Available size:
 S203(B203) , S204(B204),  S205(B205) , S206(B206)
 S207(B207) , S208(S208) ,  S209(B209),  S210(B210)

The sprags run directly on the shaft provided by the user.
Bearings are required to support axial and radial loads.
Lubrication and sealing must also be provided by the installation.
 The preferred lubrication is oil.  When necessary grease lubrication is also possible.

The housing bore to receive the outer race will be machined with a H7 tolerance.

A key will transmit the torque. The shaft on which the sprags run must have a surface hardness of HRc 60 to 62 for a finished depth of 0, 6 mm minimum. Core hardness should be HRc 35 to 45. Surface roughness must not exceed 22 CLA.

Maximum shaft taper 0, 01 mm per 50mm length. Concentricity between shaft and housing bore should be maintained within TIR 0, 05 mm.The design allows the use of most of the common lubricants used in power transmission including gear oils with EP additives.

Catalogue of B2013 one way bearing 

 

Type	Drag torque(N.m)	Overrunning Speed (r/min)		Shaft size (mm)	Outer race h7(mm)	Thickness	Key way
		inner race	outer race			(mm)	(mm)
B203	39.2	2400	500	16.51	40	25	4.0×2.5
B204	58.8	2400	500	18.796	47	25	5.0×3.0
B205	98	1800	400	23.622	52	25	5.0×3.0
B206	235	1800	350	32.766	62	28	7.0×4.0
B207	372	1800	300	42.088	72	28	7.0×4.0
B208	549	1800	200	46.761	80	32	10.0×4.5
B209	549	1200	200	46.761	85	32	10.0×4.5
B210	784	1200	200	56.109	90	32	10.0×4.5
B211	784	1200	200	56.109	100	32	10.0×4.5
B212	1230	1200	180	70.029	110	42	10.0×4.5
B213	1230	1200	180	70.029	120	42	10.0×4.5
B214	1390	1000	180	79.356	125	42	12.0×4.5