Item # 7221CT1B, Single Angular Contact Ball Bearing - Open Type On NTN Bearing Corp. of America

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	Item # 7221CT1B, Single Angular Contact Ball Bearing - Open Type

Single-Angular-Contact-Ball-Bearing-Open-Type

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Single Angular Contact Ball Bearings - Open Type - Dimensions

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Unit of Measure: Imperial Metric Both

Order Now · Technical Specifications · Dimensional Specifications

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Ordering Options		Find a Distributor Contact NTN Customer Support Specialist Order through NTN DOL (Authorized Distributors Only)

Technical Specifications

Type		Angular Contact Ball Bearing

Bore Type		Round

Material		High Carbon Chrome Steel

Cage Type		Stratified

Cage Material		Phenolic

Limiting Speed - Oil		7700 RPM

Limiting Speed - Grease		6000 RPM

Configuration		One

Factor		14.5

Static Load Rating		32000 lbf 143000 N 143.00 kN

Dynamic Load Rating		36500 lbf 162000 N 162.00 kN

Enclosure		Open

Weight		8.400 lb 3.810 kg

Operating Temperature Range		-40 to 250 ºF -40 to 120 ºC

Dimensional Specifications

		Single Angular Contact Ball Bearings - Open Type - Dimensions larger image

d		4.1339 in 105.000 mm

D		7.4803 in 190.000 mm

B		1.4173 in 36.000 mm

r		0.0827 in 2.100 mm

r1		0.0433 in 1.100 mm

Contact Angle		15 º

a (Load Center)		1.4882 in 37.800 mm

da min		4.6063 in 117.000 mm

db min		4.4094 in 112.000 mm

Da max		7.0079 in 178.000 mm

Db max		7.2047 in 183.000 mm

ras max		0.0787 in 2.000 mm

r1as max		0.0394 in 1.000 mm

d1		5.1693 in 131.300 mm

D2		6.9016 in 175.300 mm

Double Row Width		2.8346 in 72.000 mm

Triple Row Width		4.2520 in 108.000 mm

Quadruple Row Width		5.6693 in 144.000 mm

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Item # 7221CT1B, Single Angular Contact Ball Bearing - Open Type

Ordering Options

Type

Bore Type

Material

Cage Type

Cage Material

Limiting Speed - Oil

Limiting Speed - Grease

Configuration

Factor

Static Load Rating

Dynamic Load Rating

Enclosure

Weight

Operating Temperature Range

d

D

B

r

r1

Contact Angle

a (Load Center)

da min

db min

Da max

Db max

ras max

r1as max

d1

D2

Double Row Width

Triple Row Width

Quadruple Row Width

2014-07-29 | PRESS RELEASE

2014-05-09 | PRESS RELEASE